When choosing a commercial grease trap, durability, capacity, and ease of maintenance are key factors. The John Boos GT-100 stands out as the best overall pick thanks to its large capacity and robust construction, ideal for high-volume kitchens. The Beseder 10 GPM Plastic Grease Trap offers great value for smaller establishments, while the BEAMNOVA Stainless Steel Grease Trap provides a solid stainless steel option for durability. These choices reflect the tradeoffs between size, material quality, and price. Continue reading for a detailed breakdown of each product’s strengths and weaknesses.

14
compared
10
brands
2
certifications
20 GPM
max flow rate
Which commercial grease trap should you buy?
★ Top Pick
John Boos GT-100 Carbon Steel
Best Overall for Heavy-Duty Commercial Use
High capacity ideal for busy operations
See on Amazon →
Medium-sized restaurants or cafes with steady but not overwhelming grease flow
John Boos GT-20 Carbon Steel G
Durable, corrosion-resistant steel construction
View on Amazon →
Small restaurants, cafes, or residential kitchens with modest grease flow
Beseder Grease Trap Intercepto
Corrosion-resistant plastic construction
View on Amazon →
Industrial kitchens or large restaurants requiring high flow capacity and corrosion resistance
BEAMNOVA Commercial Grease Tra
Large capacity suitable for heavy use
View on Amazon →
Restaurants or commercial kitchens seeking a durable, high-flow under-sink grease trap
40 lb Carbon Steel Grease Trap
Durable, corrosion-resistant construction
View on Amazon →
Flow Rate — compared
Beseder Grease Trap Intercepto4 GPM
BEAMNOVA Commercial Grease Tra13 GPM
40 lb Carbon Steel Grease Trap20 GPM
Wentworth Commercial Grease Tr15 GPM
Beseder Grease Trap Intercepto10 GPM
Wentworth Commercial Grease Tr10 GPM
Wadoy 8 lb Commercial Grease T5 GPM
30 lb Carbon Steel Grease Trap15 GPM
8 lb Carbon Steel Grease Trap 4 GPM
20 lb Carbon Steel Grease Trap10 GPM
Pros & cons at a glance
John Boos GT-100 Carbon Steel
✓ High capacity ideal for busy operations
✗ Heavy weight complicates installation
John Boos GT-20 Carbon Steel G
✓ Durable, corrosion-resistant steel construction
✗ Still somewhat heavy at 20 lbs, requiring help for installation
Beseder Grease Trap Intercepto
✓ Corrosion-resistant plastic construction
✗ Less durable than metal counterparts
BEAMNOVA Commercial Grease Tra
✓ Large capacity suitable for heavy use
✗ Heavy weight complicates handling
40 lb Carbon Steel Grease Trap
✓ Durable, corrosion-resistant construction
✗ Lacks hub connections, limiting some installations
Wentworth Commercial Grease Tr
✓ Heavy-duty carbon steel construction offers exceptional durability
✗ Heavy weight complicates installation and handling
Beseder Grease Trap Intercepto
✓ Durable HDPE construction resists rust and leaks
✗ Limited to 10 GPM flow, unsuitable for high-traffic kitchens
John Boos GT-8 Carbon Steel Gr
✓ TIG welded carbon steel ensures strong, long-lasting construction
✗ Heavy weight may be challenging for installation or handling
Wentworth Commercial Grease Tr
✓ Durable heavy-duty carbon steel construction
✗ Limited to 10 GPM, not suitable for high-volume environments
Wadoy 8 lb Commercial Grease T
✓ Stainless steel resists rust and corrosion
✗ Limited capacity for high-volume kitchens
30 lb Carbon Steel Grease Trap
✓ Corrosion-resistant 11-gauge steel enhances durability
✗ Heavy weight makes handling and installation challenging
8 lb Carbon Steel Grease Trap
✓ Compact size fits tight spaces easily
✗ Limited capacity may require more frequent cleaning
Commercial Grease Trap
✓ Four-stage filtration ensures effective grease removal
✗ Limited capacity for high-volume operations
20 lb Carbon Steel Grease Trap
✓ Durable corrosion-resistant steel construction
✗ No hub connections may complicate some installations

Key Takeaways

  • Capacity varies significantly, with larger traps suited for high-demand commercial kitchens.
  • Stainless steel models tend to offer better durability but come at a higher price point.
  • Plastic traps are lighter and easier to install but may have shorter lifespans.
  • PDI Certification is a mark of compliance that some models feature, ensuring quality standards.
  • Size and inlet/outlet configurations are critical for fitting into existing kitchen setups.
2
John Boos GT-20 Carbon Steel G
Best for Medium-Size Commercial Applications
1
John Boos GT-100 Carbon Steel
Best Overall for Heavy-Duty Commercial Use
3
Beseder Grease Trap Intercepto
Best for Small-Scale or Home Use

Our Top Commercial Grease Trap Picks

John Boos GT-100 Carbon Steel Grease Interceptor, 30.5″ Long x 21.5″ Tall x 22.25″ Wide, 100 lbs CapacityJohn Boos GT-100 Carbon Steel Grease Interceptor, 30.5" Long x 21.5" Tall x 22.25" Wide, 100 lbs CapacityBest Overall for Heavy-Duty Commercial UseLength: 30.5 inchesHeight: 21.5 inchesWidth: 22.25 inchesVIEW ON AMAZONSee Our Full Breakdown
John Boos GT-20 Carbon Steel Grease Interceptor, 20.1″ Long x 12.1″ Tall x 14.5″ Wide, 20 lbs CapacityJohn Boos GT-20 Carbon Steel Grease Interceptor, 20.1" Long x 12.1" Tall x 14.5" Wide, 20 lbs CapacityBest for Medium-Size Commercial ApplicationsLength: 20.1 inchesHeight: 12.1 inchesWidth: 14.5 inchesVIEW ON AMAZONSee Our Full Breakdown
Beseder Grease Trap Interceptor 4 GPM Plastic for Home, Cafe, RestaurantBeseder Grease Trap Interceptor 4 GPM Plastic for Home, Cafe, RestaurantBest for Small-Scale or Home UseMaterial: Plastic (HDPE)Flow Rate: 4 GPMDimensions: 15.75 x 13.2 x 10.63 inchesVIEW ON AMAZONSee Our Full Breakdown
BEAMNOVA Commercial Grease Trap, 25 lbs, Stainless Steel, Side InletBEAMNOVA Commercial Grease Trap, 25 lbs, Stainless Steel, Side InletBest for Industrial and Heavy Commercial UseCapacity: 25 lbsFlow Rate: 13 GPMMaterial: Stainless SteelVIEW ON AMAZONSee Our Full Breakdown
40 lb Carbon Steel Grease Trap Interceptor for Restaurant Under Sink, 20 GPM, PDI Certified40 lb Carbon Steel Grease Trap Interceptor for Restaurant Under Sink, 20 GPM, PDI CertifiedBest for Under-Sink Restaurant InstallationsCapacity: 40 lbFlow Rate: 20 GPMMaterial: 11 Gauge Carbon SteelVIEW ON AMAZONSee Our Full Breakdown
Wentworth Commercial Grease Trap Interceptor, 30 lb Capacity, 15 GPMWentworth Commercial Grease Trap Interceptor, 30 lb Capacity, 15 GPMBest Overall for Heavy-Duty Commercial UseFlow Rate: 15 GPMGrease Capacity: 30 lbMaterial: Carbon SteelVIEW ON AMAZONSee Our Full Breakdown
Beseder Grease Trap Interceptor 10 GPM Plastic for Cafe, Bakery, RestaurantBeseder Grease Trap Interceptor 10 GPM Plastic for Cafe, Bakery, RestaurantBest Value for Small to Medium Commercial KitchensFlow Rate: 10 GPMDimensions: 15.75 x 13.2 x 10.63 inchesMaterial: Plastic (HDPE)VIEW ON AMAZONSee Our Full Breakdown
John Boos GT-8 Carbon Steel Grease Interceptor, 14.2″ Long x 11.2″ Tall x 10.5″ Wide, 8 lbs CapacityJohn Boos GT-8 Carbon Steel Grease Interceptor, 14.2" Long x 11.2" Tall x 10.5" Wide, 8 lbs CapacityBest for Under-Sink, Compact ApplicationsLength: 14.2 inchesHeight: 11.2 inchesWidth: 10.5 inchesVIEW ON AMAZONSee Our Full Breakdown
Wentworth Commercial Grease Trap Interceptor, 20 lb Capacity, 10 GPMWentworth Commercial Grease Trap Interceptor, 20 lb Capacity, 10 GPMBest for Mid-Size Commercial Kitchens with Moderate FlowFlow Rate: 10 GPMGrease Capacity: 20 lbMaterial: 11-gauge carbon steelVIEW ON AMAZONSee Our Full Breakdown
Wadoy 8 lb Commercial Grease Trap, Stainless Steel Under-Sink InterceptorWadoy 8 lb Commercial Grease Trap, Stainless Steel Under-Sink InterceptorBest for Small, Easy-to-Maintain InstallationsWeight: 8 lbsDimensions: 14 x 10 x 9.8 inchesFlow Rate: 5 GPMVIEW ON AMAZONSee Our Full Breakdown
30 lb Carbon Steel Grease Trap Interceptor for Restaurant Under Sink, 15 GPM, PDI Certified30 lb Carbon Steel Grease Trap Interceptor for Restaurant Under Sink, 15 GPM, PDI CertifiedBest Overall for Restaurant Under-Sink UseCapacity: 30 lbFlow Rate: 15 GPMMaterial: 11 Gauge Carbon SteelVIEW ON AMAZONSee Our Full Breakdown
8 lb Carbon Steel Grease Trap Interceptor for Restaurant Under Sink Kitchen8 lb Carbon Steel Grease Trap Interceptor for Restaurant Under Sink KitchenBest for Small Restaurant Kitchens and Limited SpacesCapacity: 8 lbFlow Rate: 4 GPMMaterial: 11 Gauge Carbon SteelVIEW ON AMAZONSee Our Full Breakdown
Commercial Grease Trap, 4-Stage Stainless Steel Under Sink InterceptorCommercial Grease Trap, 4-Stage Stainless Steel Under Sink InterceptorBest for Space-Conscious Food Processing AreasFiltration stages: 4Material: Stainless SteelDimensions: 14 x 10 x 9.1 inchesVIEW ON AMAZONSee Our Full Breakdown
20 lb Carbon Steel Grease Trap Interceptor for Restaurant Under Sink Kitchen20 lb Carbon Steel Grease Trap Interceptor for Restaurant Under Sink KitchenBest for Medium-Size Restaurant NeedsCapacity: 20 lbFlow Rate: 10 GPMMaterial: 11 Gauge Carbon SteelVIEW ON AMAZONSee Our Full Breakdown
Specs at a glance
commercial grease trapMaterialFlow RateCapacityCertification
John Boos GT-100 Carbon Steel TIG welded 11 gauge carbon steel100 lbs
John Boos GT-20 Carbon Steel GTIG welded 11 gauge carbon steel20 lbs
Beseder Grease Trap InterceptoPlastic (HDPE)4 GPMASME A112.14.3
BEAMNOVA Commercial Grease TraStainless Steel13 GPM25 lbs
40 lb Carbon Steel Grease Trap11 Gauge Carbon Steel20 GPM40 lbPDI Certified
Wentworth Commercial Grease TrCarbon Steel15 GPMPDI certified
Beseder Grease Trap InterceptoPlastic (HDPE)10 GPMASME A112.14.3
John Boos GT-8 Carbon Steel GrTIG welded 11 gauge carbon steel
Wentworth Commercial Grease Tr11-gauge carbon steel10 GPMPDI certified
Wadoy 8 lb Commercial Grease T201 stainless steel5 GPM
30 lb Carbon Steel Grease Trap11 Gauge Carbon Steel15 GPM30 lbPDI Certified
8 lb Carbon Steel Grease Trap 11 Gauge Carbon Steel4 GPM8 lbPDI Certified
Commercial Grease TrapStainless Steel8-10 pounds
20 lb Carbon Steel Grease Trap11 Gauge Carbon Steel10 GPM20 lbPDI Certified

More Details on Our Top Picks

  1. John Boos GT-100 Carbon Steel Grease Interceptor, 30.5″ Long x 21.5″ Tall x 22.25″ Wide, 100 lbs Capacity

    John Boos GT-100 Carbon Steel Grease Interceptor, 30.5" Long x 21.5" Tall x 22.25" Wide, 100 lbs Capacity

    Best Overall for Heavy-Duty Commercial Use

    View on Amazon

    This large-capacity grease trap stands out for its robust 100-pound capacity, making it ideal for busy commercial kitchens with high grease loads. Its TIG welded 11 gauge carbon steel construction ensures durability, especially compared to plastic options like the Beseder model, which, while easier to handle, may lack long-term strength. The secure locking lid and removable baffle simplify maintenance, but the weight—over 100 pounds—can make installation challenging without professional help. This model is best suited for establishments with consistent high-volume grease output, where durability outweighs ease of handling. However, smaller or less frequent use environments might find this capacity excessive.

    Pros:
    • High capacity ideal for busy operations
    • Durable corrosion-resistant steel construction
    • Secure locking lid prevents leaks
    • Includes flow control components
    Cons:
    • Heavy weight complicates installation
    • Limited mobility due to size and weight
    • Designed primarily for commercial settings, not residential

    Best for: Large commercial kitchens or food processing facilities needing high grease capacity and durability

    Not ideal for: Small cafes or startups with limited grease output, due to its size and weight

    • Length:30.5 inches
    • Height:21.5 inches
    • Width:22.25 inches
    • Capacity:100 lbs
    • Material:TIG welded 11 gauge carbon steel
    • Features:Non-skid cover with locking device, removable baffle, T-Vent Pipe included
    Our verdict
    “This grease trap is best for large-scale commercial kitchens that prioritize durability and capacity over ease of installation.”
  2. John Boos GT-20 Carbon Steel Grease Interceptor, 20.1″ Long x 12.1″ Tall x 14.5″ Wide, 20 lbs Capacity

    John Boos GT-20 Carbon Steel Grease Interceptor, 20.1" Long x 12.1" Tall x 14.5" Wide, 20 lbs Capacity

    Best for Medium-Size Commercial Applications

    View on Amazon

    Compared to the larger GT-100, the GT-20 offers a more manageable size and weight, making it suitable for smaller restaurants or cafes that still need reliable grease separation. Its TIG welded 11 gauge carbon steel construction guarantees durability, while the lockable non-skid cover and removable baffle facilitate straightforward maintenance. While lighter than the GT-100, at 20 pounds, it still might require assistance during installation, especially in tight spaces. This model makes the most sense for medium-sized establishments with moderate grease output, balancing capacity and ease of handling. For very small operations or residential use, the capacity and build may be excessive.

    Pros:
    • Durable, corrosion-resistant steel construction
    • Compact size for easier handling
    • Secure locking cover for safety
    • Removable baffle simplifies cleaning
    Cons:
    • Still somewhat heavy at 20 lbs, requiring help for installation
    • Capacity may be insufficient for very busy outlets
    • Designed mainly for commercial use, overkill for small setups

    Best for: Medium-sized restaurants or cafes with steady but not overwhelming grease flow

    Not ideal for: Small home kitchens or very high-volume commercial kitchens needing larger capacity

    • Length:20.1 inches
    • Height:12.1 inches
    • Width:14.5 inches
    • Capacity:20 lbs
    • Material:TIG welded 11 gauge carbon steel
    • Features:Corrosion resistant coating, non-skid cover with locking device, removable baffle, T-Vent Pipe included
    Our verdict
    “This pick provides a solid balance of durability and manageability for medium-sized foodservice operations.”
  3. Beseder Grease Trap Interceptor 4 GPM Plastic for Home, Cafe, Restaurant

    Beseder Grease Trap Interceptor 4 GPM Plastic for Home, Cafe, Restaurant

    Best for Small-Scale or Home Use

    View on Amazon

    This plastic grease trap is designed for lower flow rates, making it suitable for small restaurants, cafes, or even home kitchens where grease load is moderate. Its ASME certification signals reliability, while the plastic construction offers resistance to rust and leaks, unlike metal models such as the John Boos GT-20. Its compact dimensions and easy installation are advantageous for spaces with limited room. However, the plastic material, while resistant to corrosion, may lack the durability of metal over time, especially in harsher environments. Compared with larger metal traps, it’s best for environments with less frequent or lower volume grease discharge.

    Pros:
    • Corrosion-resistant plastic construction
    • Compact and easy to install
    • ASME certified for safety
    • Includes handles, lid, and rubber seals
    Cons:
    • Less durable than metal counterparts
    • Designed mainly for lower flow rates
    • Plastic may degrade over time in harsh conditions

    Best for: Small restaurants, cafes, or residential kitchens with modest grease flow

    Not ideal for: High-volume commercial kitchens or outdoor settings where durability is critical

    • Material:Plastic (HDPE)
    • Flow Rate:4 GPM
    • Dimensions:15.75 x 13.2 x 10.63 inches
    • Wall Thickness:1/4 inch
    • Inlet Size:2 inches
    • Certification:ASME A112.14.3
    Our verdict
    “This plastic trap offers a reliable, space-saving solution for small-scale or low-volume grease management needs.”
  4. BEAMNOVA Commercial Grease Trap, 25 lbs, Stainless Steel, Side Inlet

    BEAMNOVA Commercial Grease Trap, 25 lbs, Stainless Steel, Side Inlet

    Best for Industrial and Heavy Commercial Use

    View on Amazon

    Compared with smaller or plastic models, the BEAMNOVA stainless steel trap offers a larger capacity—around 25 pounds—and a high flow rate of 13 GPM, making it suitable for industrial kitchens or large restaurants. Its stainless steel build resists rust and corrosion better than carbon steel, especially in wet environments, and the side inlet simplifies installation in tight spaces. However, its approximately 25-pound weight can pose challenges during setup, and it requires proper leveling and regular maintenance to prevent clogging. This model is ideal for facilities where durability and capacity are more important than ease of handling, but smaller operators might find it unnecessarily hefty.

    Pros:
    • Large capacity suitable for heavy use
    • Stainless steel resists rust and corrosion
    • Easy to install with included accessories
    • Effective separation of fats and oils
    Cons:
    • Heavy weight complicates handling
    • Requires proper floor leveling for optimal operation
    • Regular maintenance needed to prevent clogging

    Best for: Industrial kitchens or large restaurants requiring high flow capacity and corrosion resistance

    Not ideal for: Small cafes or residential settings where capacity and weight are less manageable

    • Capacity:25 lbs
    • Flow Rate:13 GPM
    • Material:Stainless Steel
    • Dimensions:23.82 x 12 x 11.22 inches
    • Inlet/Outlet:Side Inlet
    • Weight:Approximately 25 lbs
    Our verdict
    “This stainless steel trap is a durable choice for large-scale operations demanding high flow and long-term reliability.”
  5. 40 lb Carbon Steel Grease Trap Interceptor for Restaurant Under Sink, 20 GPM, PDI Certified

    40 lb Carbon Steel Grease Trap Interceptor for Restaurant Under Sink, 20 GPM, PDI Certified

    Best for Under-Sink Restaurant Installations

    View on Amazon

    This 40-pound capacity grease trap offers a flow rate of 20 GPM, making it well-suited for under-sink applications in busy restaurants. Its corrosion-resistant 11-gauge carbon steel ensures durability, comparable to the John Boos GT-100 but in a smaller footprint. The removable baffles facilitate cleaning, and the non-skid deck plate adds safety. While its PDI certification confirms quality, the absence of hub connections might limit some installation configurations, and its weight could be a hurdle for quick setup. This model is ideal for establishments needing a reliable under-sink solution with high flow capacity, but it may be overbuilt for low-volume or residential needs.

    Pros:
    • Durable, corrosion-resistant construction
    • High flow rate for busy kitchens
    • Removable baffles for easy cleaning
    • PDI certified for quality assurance
    Cons:
    • Lacks hub connections, limiting some installations
    • Heavy weight complicates handling
    • Overkill for low-volume environments

    Best for: Restaurants or commercial kitchens seeking a durable, high-flow under-sink grease trap

    Not ideal for: Small cafes or residential kitchens with limited grease output or space constraints

    • Capacity:40 lb
    • Flow Rate:20 GPM
    • Material:11 Gauge Carbon Steel
    • Features:T-Vent, Removable Baffles, Non-Skid Deck Plate
    • Certification:PDI Certified
    Our verdict
    “This under-sink grease trap provides a reliable, high-capacity solution for demanding restaurant environments needing long-lasting performance.”
  6. Wentworth Commercial Grease Trap Interceptor, 30 lb Capacity, 15 GPM

    Wentworth Commercial Grease Trap Interceptor, 30 lb Capacity, 15 GPM

    Best Overall for Heavy-Duty Commercial Use

    View on Amazon

    This Wentworth model stands out for its robust construction and high flow capacity, making it ideal for busy restaurant kitchens. Compared with the smaller Wentworth 20 lb version, it handles higher volumes with ease, reducing the risk of backups during peak hours. Its heavy-duty carbon steel body with corrosion-resistant coating ensures longevity in demanding environments. The removable top cover simplifies inspection and cleaning, a significant advantage over plastic alternatives like the Beseder 10 GPM trap, which may not last as long under constant use. However, its weight and installation space requirements mean it’s less suitable for compact kitchens or those with limited floor space. Overall, this model suits large-scale commercial kitchens needing durable, high-capacity solutions.

    Pros:
    • Heavy-duty carbon steel construction offers exceptional durability
    • Powder coating provides corrosion resistance for long-term use
    • High flow rate (15 GPM) prevents backups during peak times
    • Removable top for easy inspection and maintenance
    Cons:
    • Heavy weight complicates installation and handling
    • Requires significant floor space, not suited for small kitchens

    Best for: Large restaurants or food-service operations with high wastewater flow and demanding durability needs

    Not ideal for: Small cafes or kitchens with limited space, due to its heavy weight and sizable footprint

    • Flow Rate:15 GPM
    • Grease Capacity:30 lb
    • Material:Carbon Steel
    • Finish:Powder-Coated
    • Certification:PDI certified
    Our verdict
    “This grease trap is best suited for large-scale kitchens needing a durable, high-capacity solution despite installation challenges.”
  7. Beseder Grease Trap Interceptor 10 GPM Plastic for Cafe, Bakery, Restaurant

    Beseder Grease Trap Interceptor 10 GPM Plastic for Cafe, Bakery, Restaurant

    Best Value for Small to Medium Commercial Kitchens

    View on Amazon

    This Beseder plastic grease trap makes a compelling case for smaller operations with its manageable size and affordability. Compared to the Wentworth 30 lb model, it offers a lower flow capacity of 10 GPM, which may limit use in busier kitchens but is adequate for cafes or bakeries. Its durable HDPE plastic resists rust and leaks, providing good longevity without heavy weight. The inclusion of handles, a lid, and latches simplifies installation and maintenance, making it ideal for operators who prefer straightforward setups. However, the 10 GPM flow rate restricts its use in high-volume environments, and improper installation could hamper performance. This pick is perfect for smaller businesses prioritizing ease of use and cost-effectiveness.

    Pros:
    • Durable HDPE construction resists rust and leaks
    • Compact and lightweight for easy installation
    • Includes handles, lid, latches, and rubber seal for secure fit
    • ASME certified for safety and compliance
    Cons:
    • Limited to 10 GPM flow, unsuitable for high-traffic kitchens
    • May require precise installation for optimal performance

    Best for: Cafes, bakeries, or small restaurants with moderate wastewater flow and limited space

    Not ideal for: High-volume kitchens or establishments with heavy grease loads needing larger capacity or higher flow rates

    • Flow Rate:10 GPM
    • Dimensions:15.75 x 13.2 x 10.63 inches
    • Material:Plastic (HDPE)
    • Certification:ASME A112.14.3
    • Wall Thickness:1/4 inch
    Our verdict
    “Ideal for small-scale commercial kitchens seeking a reliable, budget-friendly grease trap with straightforward maintenance.”
  8. John Boos GT-8 Carbon Steel Grease Interceptor, 14.2″ Long x 11.2″ Tall x 10.5″ Wide, 8 lbs Capacity

    John Boos GT-8 Carbon Steel Grease Interceptor, 14.2" Long x 11.2" Tall x 10.5" Wide, 8 lbs Capacity

    Best for Under-Sink, Compact Applications

    View on Amazon

    This John Boos GT-8 stands out for its compact size and solid carbon steel build, making it suitable for under-sink installations in tight spaces. Its 8-pound capacity is modest compared to larger models like the Wentworth 20 lb, but it excels where space is limited and moderate grease loads are expected. The TIG welded construction and corrosion-resistant coating ensure durability, while features like the locking cover and removable baffle streamline maintenance. Compared with plastic options like the Beseder, it offers increased robustness but at a heavier weight—potentially difficult for some users to handle alone. It’s less suited for high-flow environments but perfect for small kitchens needing a reliable intercept. This model favors operators who prioritize durability in limited spaces.

    Pros:
    • TIG welded carbon steel ensures strong, long-lasting construction
    • Locking cover prevents spills during operation
    • Removable baffle simplifies cleaning
    • Includes T-Vent Pipe for flow control
    Cons:
    • Heavy weight may be challenging for installation or handling
    • Limited capacity for larger kitchen demands

    Best for: Small restaurants or food trucks needing a durable, under-sink grease trap in tight areas

    Not ideal for: High-volume kitchens or settings with heavy grease loads that require larger or more robust traps

    • Length:14.2 inches
    • Height:11.2 inches
    • Width:10.5 inches
    • Weight:8 lbs
    • Material:TIG welded 11 gauge carbon steel
    Our verdict
    “Best suited for space-constrained environments needing a durable, under-sink grease interceptor with easy maintenance.”
  9. Wentworth Commercial Grease Trap Interceptor, 20 lb Capacity, 10 GPM

    Wentworth Commercial Grease Trap Interceptor, 20 lb Capacity, 10 GPM

    Best for Mid-Size Commercial Kitchens with Moderate Flow

    View on Amazon

    This Wentworth 10 GPM, 20 lb capacity model offers a balanced solution for medium-sized kitchens. Compared to their larger 30 lb, 15 GPM model, it provides adequate flow capacity while occupying less floor space and being easier to handle. Its heavy-duty 11-gauge carbon steel with a powder coating ensures durability suitable for under-sink or floor installation. The removable top allows quick inspection and maintenance, making it a practical choice for establishments that need reliable grease separation without the bulk of larger units. Its main limitation is the 10 GPM flow rate, which might be insufficient in busier kitchens. This unit makes sense for operations with moderate grease loads seeking durability without excessive size or cost.

    Pros:
    • Durable heavy-duty carbon steel construction
    • Corrosion-resistant powder coating extends lifespan
    • Removable top simplifies cleaning and inspection
    • Suitable for under-sink or floor installation
    Cons:
    • Limited to 10 GPM, not suitable for high-volume environments
    • Heavy for some installation scenarios, may need professional help

    Best for: Mid-sized restaurants or cafes with steady but not high-volume grease output

    Not ideal for: High-capacity kitchens or those expecting frequent, heavy grease loads

    • Flow Rate:10 GPM
    • Grease Capacity:20 lb
    • Material:11-gauge carbon steel
    • Finish:Powder-coated
    • Certification:PDI certified
    Our verdict
    “This grease trap offers a durable, space-efficient option for medium-volume kitchens that don’t require the highest flow capacity.”
  10. Wadoy 8 lb Commercial Grease Trap, Stainless Steel Under-Sink Interceptor

    Wadoy 8 lb Commercial Grease Trap, Stainless Steel Under-Sink Interceptor

    Best for Small, Easy-to-Maintain Installations

    View on Amazon

    The Wadoy stainless steel grease trap emphasizes simplicity and corrosion resistance, making it a suitable choice for small kitchens or food trucks. Its 8 lb capacity and 5 GPM flow rate are modest but fit well within compact spaces. Compared with the John Boos 8 lb model, it offers similar capacity but with a more straightforward stainless steel design that resists rust over time. Its size allows for quick installation under sinks, and maintenance is straightforward—just clean it every 2-3 months. Its limited capacity makes it less suitable for high-volume operations, but it excels in environments where space and ease of access are priorities. This product is perfect for operators wanting a low-maintenance, corrosion-resistant grease trap for small-scale use.

    Pros:
    • Stainless steel resists rust and corrosion
    • Lightweight and easy to install
    • Simple connection to sinks and dishwashers
    • Low-maintenance cleaning schedule
    Cons:
    • Limited capacity for high-volume kitchens
    • Requires frequent cleaning for optimal performance

    Best for: Small restaurants, food trucks, or cafes with low grease output and limited space

    Not ideal for: High-volume kitchens or operations with heavy grease loads requiring larger traps

    • Weight:8 lbs
    • Dimensions:14 x 10 x 9.8 inches
    • Flow Rate:5 GPM
    • Material:201 stainless steel
    • Application:Commercial kitchens, restaurants, food trucks
    Our verdict
    “This stainless steel trap fits well in small, space-constrained kitchens seeking a durable, easy-to-maintain solution.”
  11. 30 lb Carbon Steel Grease Trap Interceptor for Restaurant Under Sink, 15 GPM, PDI Certified

    30 lb Carbon Steel Grease Trap Interceptor for Restaurant Under Sink, 15 GPM, PDI Certified

    Best Overall for Restaurant Under-Sink Use

    View on Amazon

    This 30 lb capacity grease trap is ideal for busy restaurant kitchens needing reliable under-sink performance. Its corrosion-resistant 11-gauge carbon steel ensures durability, while the 15 GPM flow rate handles substantial grease loads. Compared with the smaller 8 lb model, this unit offers a much higher capacity suited for larger volumes, but its weight and lack of hub connections can complicate installation. The inclusion of a T-Vent and removable baffles simplifies maintenance, yet the heavy construction may require additional handling effort. This option makes the most sense for establishments prioritizing capacity and longevity over ease of installation.

    Pros:
    • Corrosion-resistant 11-gauge steel enhances durability
    • High flow rate supports busy restaurant operations
    • Removable baffles simplify cleaning and maintenance
    Cons:
    • Heavy weight makes handling and installation challenging
    • No hub connections may limit flexible plumbing options

    Best for: Large restaurant kitchens requiring high flow capacity and durable materials

    Not ideal for: Small cafes or food trucks with limited space and lower grease output

    • Capacity:30 lb
    • Flow Rate:15 GPM
    • Material:11 Gauge Carbon Steel
    • Certification:PDI Certified
    • Connections:No Hub
    • Additional Features:T-Vent Included, Non-Skid Deck Plate, Removable Baffles
    Our verdict
    “This grease trap is best suited for large-scale restaurant kitchens needing robust, high-capacity performance.”
  12. 8 lb Carbon Steel Grease Trap Interceptor for Restaurant Under Sink Kitchen

    8 lb Carbon Steel Grease Trap Interceptor for Restaurant Under Sink Kitchen

    Best for Small Restaurant Kitchens and Limited Spaces

    View on Amazon

    Designed for smaller commercial kitchens, this 8 lb capacity grease trap offers a balance between durability and compactness. Its corrosion-resistant 11-gauge steel makes it suitable for frequent use, while the 4 GPM flow rate is adequate for modest grease loads. Unlike the larger 30 lb models, this trap is easier to handle and install, but its limited capacity means it’s best suited for low-volume settings. The inclusion of removable baffles and a T-Vent facilitates cleaning, yet the small size restricts its use in high-traffic kitchens. This pick is perfect for establishments with space constraints that still require reliable grease separation.

    Pros:
    • Compact size fits tight spaces easily
    • Durable corrosion-resistant steel ensures longevity
    • Removable baffles simplify cleaning
    Cons:
    • Limited capacity may require more frequent cleaning
    • Specific to small-scale restaurant setups

    Best for: Small restaurants or cafes with limited under-sink space and modest grease output

    Not ideal for: High-volume commercial kitchens or food processing facilities

    • Capacity:8 lb
    • Flow Rate:4 GPM
    • Material:11 Gauge Carbon Steel
    • Certification:PDI Certified
    • Connections:No Hub
    • Included:T-Vent
    Our verdict
    “This grease trap suits small kitchens needing a space-efficient, durable solution for moderate grease flow.”
  13. Commercial Grease Trap, 4-Stage Stainless Steel Under Sink Interceptor

    Commercial Grease Trap, 4-Stage Stainless Steel Under Sink Interceptor

    Best for Space-Conscious Food Processing Areas

    View on Amazon

    This four-stage stainless steel grease trap provides advanced filtration in a compact form, perfect for small commercial kitchens or food processing spaces. Its multi-compartment design ensures efficient grease separation, while the corrosion-resistant stainless steel withstands harsh cleaning routines. Compared with the carbon steel models, it offers a sealed, odor-controlled environment, but its 8-10 pound capacity limits use to smaller volumes. The removable baskets and polished interior make cleaning straightforward, yet the relatively limited capacity requires regular maintenance. This makes it an excellent choice for facilities with space constraints that demand high-quality filtration and odor control.

    Pros:
    • Four-stage filtration ensures effective grease removal
    • Corrosion-resistant stainless steel resists wear and odors
    • Compact, space-saving design with easy cleaning
    Cons:
    • Limited capacity for high-volume operations
    • Requires consistent cleaning to maintain performance

    Best for: Small commercial kitchens or food processing areas needing multi-stage filtration

    Not ideal for: Large-scale restaurants with high grease output

    • Filtration stages:4
    • Material:Stainless Steel
    • Dimensions:14 x 10 x 9.1 inches
    • Capacity:8-10 pounds
    Our verdict
    “This stainless steel interceptor is ideal for small, space-limited kitchens needing reliable, multi-stage grease separation.”
  14. 20 lb Carbon Steel Grease Trap Interceptor for Restaurant Under Sink Kitchen

    20 lb Carbon Steel Grease Trap Interceptor for Restaurant Under Sink Kitchen

    Best for Medium-Size Restaurant Needs

    View on Amazon

    This 20 lb capacity grease trap strikes a balance between capacity and ease of installation, making it suitable for medium-sized restaurant kitchens. Its corrosion-resistant 11-gauge steel ensures durability, while the 10 GPM flow rate handles typical grease loads efficiently. Compared to the 8 lb model, it offers more capacity but remains manageable for under-sink installation. The inclusion of a T-Vent, non-skid deck plate, and removable baffles simplifies maintenance, but like other steel units, it lacks hub connections, which may limit some plumbing configurations. This model makes sense for establishments that need more capacity than smaller units but want to avoid the bulk of larger traps.

    Pros:
    • Durable corrosion-resistant steel construction
    • High flow rate supports moderate grease production
    • Removable baffles facilitate cleaning
    Cons:
    • No hub connections may complicate some installations
    • Requires regular maintenance for optimal performance

    Best for: Medium-sized restaurant kitchens seeking a reliable, mid-capacity grease trap

    Not ideal for: Very small cafes or high-volume food production facilities

    • Capacity:20 lb
    • Flow Rate:10 GPM
    • Material:11 Gauge Carbon Steel
    • Certification:PDI Certified
    • Connections:No Hub
    • Included:T-Vent, Non-Skid Deck Plate, Removable Baffles
    Our verdict
    “This grease trap suits medium-sized kitchens requiring balanced capacity and straightforward maintenance.”
commercial grease trap
What makes a great commercial grease trap
1
Capacity and Flow Rate
Capacity determines how much grease the trap can hold before needing service, while flow rate indicates how much wastewater it can
2
Material and Durability
Most commercial grease traps are made from plastic or stainless steel.
3
Compliance and Certification
Ensuring your grease trap meets local regulations is essential to avoid fines and shutdowns.
4
Installation and Maintenance
Ease of installation varies widely; some models come pre-assembled or with simple inlet/outlet configurations, saving time and lab
How to choose your commercial grease trap
1
How we picked
Products were evaluated based on performance, build quality, capacity, ease of maintenance, and compliance standards.
2
Capacity and Flow Rate
Capacity determines how much grease the trap can hold before needing service, while flow rate indicates how much wastewa
3
Material and Durability
Most commercial grease traps are made from plastic or stainless steel.
4
Compliance and Certification
Ensuring your grease trap meets local regulations is essential to avoid fines and shutdowns.
5
Installation and Maintenance
Ease of installation varies widely; some models come pre-assembled or with simple inlet/outlet configurations, saving ti
Vetted commercial grease trap ·
The best commercial grease trap, compared
★ Winner John Boos GT-100 Carbon Steel
Best Overall for Heavy-Duty Commercial Use
14compared
20 GPMtop flow rate
2certifications

How We Picked

Products were evaluated based on performance, build quality, capacity, ease of maintenance, and compliance standards. I prioritized models with proven durability, especially for high-volume use, while considering cost-effectiveness for smaller setups. The ranking reflects a balance between value and quality, with top picks offering reliable performance in commercial environments. Additional factors such as ease of installation and material longevity helped distinguish premium options from budget-friendly models.
Everyday → specialist
Everyday & valuePremium & specialist
Which commercial grease trap fits you?
The everyday user
All-round, reliable
The enthusiast
Premium & high-performance
The gift-giver
Looks & craftsmanship

Factors to Consider When Choosing Commercial Grease Trap

Choosing the right commercial grease trap requires understanding several key factors that influence performance, longevity, and compliance. Beyond basic capacity, it’s important to consider material durability, installation requirements, and maintenance needs. Making the wrong choice can lead to frequent repairs or regulatory issues, especially in high-demand operations. This guide highlights the main factors to consider when selecting a grease trap to ensure you find a solution that fits your specific needs and budget.

Capacity and Flow Rate

Capacity determines how much grease the trap can hold before needing service, while flow rate indicates how much wastewater it can process per minute. Larger establishments with high kitchen throughput need higher-capacity traps to prevent overflow and maintain compliance. However, oversizing can lead to unnecessary costs and space issues for smaller setups. Understanding your kitchen’s daily volume helps in selecting a model that balances capacity with size constraints.

Material and Durability

Most commercial grease traps are made from plastic or stainless steel. Stainless steel offers superior durability, resistance to corrosion, and longevity, making it suitable for busy, high-demand environments. Plastic models are lighter, easier to install, and more affordable but may degrade faster under constant exposure to heat and grease. Choosing the right material depends on your operational demands and budget considerations.

Compliance and Certification

Ensuring your grease trap meets local regulations is essential to avoid fines and shutdowns. Look for models with PDI certification or other industry standards, which indicate adherence to safety and performance benchmarks. Non-certified traps may save money upfront but could lead to compliance issues, especially for larger commercial kitchens that face regular inspections.

Installation and Maintenance

Ease of installation varies widely; some models come pre-assembled or with simple inlet/outlet configurations, saving time and labor costs. Maintenance involves regular cleaning and inspection, so features like access points and durable materials can reduce downtime. Investing in a model with straightforward maintenance features can lower long-term operational costs and prevent costly emergencies.

Size and Space Requirements

Measuring available space is critical before purchasing, as grease traps come in various sizes. Larger units handle higher volumes but require more space, which may not be feasible in compact kitchens. Conversely, smaller models fit into tight areas but may need more frequent servicing. Consider your kitchen layout carefully to choose a trap that balances capacity with spatial constraints.

Frequently Asked Questions

How often should I clean my commercial grease trap?

Most commercial grease traps require cleaning every 1-3 months, depending on usage volume. High-traffic kitchens may need more frequent maintenance to prevent blockages and ensure compliance. Regular cleaning not only extends the lifespan of the trap but also helps avoid costly fines or shutdowns due to regulatory violations. Establishing a maintenance schedule based on your specific operation is the best way to keep things running smoothly.

Can I install a grease trap myself or should I hire a professional?

Installation complexity varies by model; some traps are straightforward and suitable for DIY setup if you have basic plumbing skills. However, for larger or more complex units, hiring a professional plumber ensures proper installation and compliance with local codes. Incorrect installation can lead to leaks, improper function, and potential regulatory issues, so weighing your skill level against the complexity of the unit is important.

What material is best for a high-volume commercial kitchen?

Stainless steel is generally the best choice for high-volume settings due to its durability, resistance to corrosion, and ease of cleaning. Plastic models, while cheaper and lighter, may not withstand constant exposure to grease and heat over time, leading to premature failure. Investing in a stainless steel trap can provide peace of mind and longer service life in demanding environments.

Are smaller grease traps effective for large restaurants?

While smaller traps can work for limited or low-volume kitchens, they are generally not suitable for large restaurants with heavy throughput. They require more frequent cleaning and risk overflowing during peak hours, which can lead to regulatory issues. For high-demand environments, larger capacity traps are essential to maintain efficiency and compliance without constant maintenance.

What features should I look for to reduce maintenance costs?

Look for models with easy-access lids, durable materials like stainless steel, and clear inlet/outlet configurations that simplify cleaning. Features such as built-in baffles or filtering components can also reduce the frequency of cleaning by trapping grease more effectively. Investing in a well-designed trap with these features can significantly lower ongoing maintenance efforts and costs.

Conclusion

For large, high-volume kitchens that prioritize longevity and regulatory compliance, the John Boos GT-100 remains the best overall choice. Smaller operations or those on a budget will find the Beseder 10 GPM Plastic Grease Trap offers excellent value. For those seeking durability and minimal maintenance, the BEAMNOVA Stainless Steel Grease Trap is ideal. Beginners or smaller cafes should consider models with easier installation and straightforward cleaning features, while large restaurants should focus on capacity and certification. The right choice hinges on your specific needs, space, and budget considerations—use this guide to find your best fit.

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