When choosing a grease trap interceptor 20gpm, it’s essential to balance capacity, durability, and ease of maintenance. The Wentworth Commercial Grease Trap Interceptor stands out as the overall best due to its reliable performance and large capacity, ideal for busy kitchens. The Canplas 3920A02S offers a thermoplastic design that resists corrosion, making it a strong contender for long-term use. However, these options come with tradeoffs: higher capacity units tend to be larger and more expensive, while smaller models may require more frequent cleaning. Keep reading for a detailed breakdown of each product to find the best fit for your needs.
Key Takeaways
- Capacity and flow rate consistency are critical to prevent kitchen backups during peak hours.
- Durability varies significantly, with thermoplastic and stainless steel offering longer lifespan options.
- Compact models are easier to install but may need more frequent maintenance, suitable for smaller setups.
- Price often correlates with capacity and build quality; higher-priced units tend to be more durable and efficient.
- Ease of cleaning and access features greatly impact ongoing maintenance costs and effort.
| Wentworth Commercial Grease Trap Interceptor, 20 lb Capacity, 10 GPM |  | Best for Small to Medium Commercial Kitchens with Low to Moderate Flow Needs | Flow Rate: 10 GPM | Grease Capacity: 20 lb | Material: 11-gauge carbon steel | VIEW ON AMAZON | See Our Full Breakdown |
| Wadoy 8 lb Commercial Grease Trap, Stainless Steel Under-Sink Interceptor |  | Best for Small Kitchens Needing Compact, Easy-to-Install Solutions | Capacity: 8 lbs | Material: 201 stainless steel | Dimensions: 14 x 10 x 9.8 inches | VIEW ON AMAZON | See Our Full Breakdown |
| Canplas 3920A02S Thermoplastic Grease Interceptor, 20 GPM, 40 lb Capacity |  | Best for Heavy-Duty Commercial Kitchens Demanding Easy Maintenance | Flow Rate: 20 GPM | Grease Capacity: 40 lb | Connection Size: 2 inches | VIEW ON AMAZON | See Our Full Breakdown |
| 20 lb Carbon Steel Grease Trap Interceptor for Restaurant Under Sink Kitchen |  | Best for Restaurants Needing a Compact, Reliable Under-Sink Unit | Capacity: 20 lb | Flow Rate: 10 GPM | Material: 11-gauge carbon steel | VIEW ON AMAZON | See Our Full Breakdown |
| Wentworth Commercial Grease Trap Interceptor, 70 lb Capacity, 35 GPM |  | Best for High-Volume, Heavy-Duty Commercial Kitchens | Flow Rate: 35 GPM | Grease Capacity: 70 lb | Material: Carbon Steel | VIEW ON AMAZON | See Our Full Breakdown |
| 45 Gallon Commercial Grease Trap, 20 GPM Interceptor for Restaurant and Household Use |  | Best Overall for Versatile Commercial and Household Use | Capacity: 45 gallons | Flow Rate: 20 GPM | Material: Carbon Steel | VIEW ON AMAZON | See Our Full Breakdown |
| Beseder Grease Trap Interceptor 10 GPM Plastic for Cafe, Bakery, Restaurant |  | Best for Small Commercial Kitchens and Foodservice Operations | Material: Plastic (HDPE) | Flow Rate: 10 GPM | Dimensions: 15.75 x 13.2 x 10.63 inches | VIEW ON AMAZON | See Our Full Breakdown |
| 45 Gallons Commercial Grease Trap, 20 GPM Under Sink Grease Interceptor with Side Inlet, Carbon Steel, Black |  | Best for Commercial Kitchens Needing Heavy-Duty, Under-Sink Installation | Capacity: 45 gallons | Flow Rate: 20 GPM | Material: Carbon Steel | VIEW ON AMAZON | See Our Full Breakdown |
| Polyethylene Grease Interceptor, 2-inch, 20 GPM |  | Best for Lightweight, Easy-to-Install Applications | Material: Polyethylene | Inlet/Outlet Size: 2 inches | Flow Rate: 20 GPM | VIEW ON AMAZON | See Our Full Breakdown |
| Commercial Grease Trap, 50 lbs Capacity, 20 GPM Flow Oil-Water Separator for Restaurants and Commercial Kitchens |  | Best for Heavy-Duty Commercial Use with High Capacity | Material: Q235 carbon steel | Capacity: 50 lbs | Flow Rate: 20 GPM | VIEW ON AMAZON | See Our Full Breakdown |
| Zurn GT2700-20-2NH Grease Trap, 20 Gallons Per Minute, 30 Pounds Capacity |  | Best Overall for Durability and Performance | Flow Rate: 20 gallons per minute | Capacity: 30 pounds | Material: Dura-Coated fabricated steel | VIEW ON AMAZON | See Our Full Breakdown |
| Grease Interceptor, Matte, 40 lb. Capacity |  | Best for Industrial Durability and Solid Trapping | Weight: 40 lbs | Capacity: 40 lb | Finish: Matte | VIEW ON AMAZON | See Our Full Breakdown |
| Beseder Grease Trap Interceptor 4 GPM Plastic for Home, Cafe, Restaurant |  | Best Compact and Easy to Install for Small Spaces | Flow Rate: 4 GPM | Material: High-density polyethylene (HDPE) | Dimensions: 15.75 x 13.2 x 10.63 inches | VIEW ON AMAZON | See Our Full Breakdown |
| 50 LB Commercial Grease Interceptor 25 GPM with 3″ Non-Threaded Connections |  | Best for High-Capacity, Heavy-Duty Commercial Use | Capacity: 50 lb | Flow Rate: 25 GPM | Connections: 3″ Non-Threaded | VIEW ON AMAZON | See Our Full Breakdown |
| grease trap interceptor 20gpm | Flow Rate | Material | Capacity |
|---|---|---|---|
| Wentworth Commercial Grease Tr | 10 GPM | 11-gauge carbon steel | — |
| Wadoy 8 lb Commercial Grease T | 5 GPM | 201 stainless steel | 8 lbs |
| Canplas 3920A02S Thermoplastic | 20 GPM | Thermoplastics | — |
| 20 lb Carbon Steel Grease Trap | 10 GPM | 11-gauge carbon steel | 20 lb |
| Wentworth Commercial Grease Tr | 35 GPM | Carbon Steel | — |
| 45 Gallon Commercial Grease Tr | 20 GPM | Carbon Steel | 45 gallons |
| Beseder Grease Trap Intercepto | 10 GPM | Plastic (HDPE) | — |
| 45 Gallons Commercial Grease T | 20 GPM | Carbon Steel | 45 gallons |
| Polyethylene Grease Intercepto | 20 GPM | Polyethylene | — |
| Commercial Grease Trap | 20 GPM | Q235 carbon steel | 50 lbs |
| Zurn GT2700-20-2NH Grease Trap | 20 gallons per minute | Dura-Coated fabricated steel | 30 pounds |
| Grease Interceptor | — | — | 40 lb |
| Beseder Grease Trap Intercepto | 4 GPM | High-density polyethylene (HDPE) | — |
| 50 LB Commercial Grease Interc | 25 GPM | — | 50 lb |
More Details on Our Top Picks
Wentworth Commercial Grease Trap Interceptor, 20 lb Capacity, 10 GPM
This interceptor stands out for its durable construction and ease of maintenance, making it ideal for smaller commercial kitchens that handle moderate grease loads. Compared with the larger Wentworth 70 lb model, it offers a more compact footprint suitable for kitchens with limited space and lower flow rates. The heavy-duty 11-gauge carbon steel and corrosion-resistant powder coating ensure longevity, but it’s not designed for high-volume operations, which limits its applicability. The removable top simplifies cleaning, though the 10 GPM flow rate caps its use in busier settings. For basic restaurant use or under-sink installations where space is tight, this unit delivers reliable performance without the bulk of heavier models.
Pros:- Durable heavy-duty 11-gauge carbon steel construction
- Corrosion-resistant powder coating extends lifespan
- Removable top for straightforward inspection and cleaning
Cons:- Limited to 10 GPM flow rate, unsuitable for high-volume kitchens
- Requires floor installation space, which may be restrictive
Best for: Small to medium-sized restaurants or commercial kitchens needing a reliable, space-efficient grease trap at moderate flow rates.
Not ideal for: High-volume operations or kitchens with flow rates exceeding 10 GPM, where a larger capacity interceptor is necessary.
- Flow Rate:10 GPM
- Grease Capacity:20 lb
- Material:11-gauge carbon steel
- Finish:Powder-coated
- Certification:PDI certified
Our verdict“This model is best suited for small to medium commercial kitchens that prioritize durability and ease of maintenance over high flow capacity.”
Wadoy 8 lb Commercial Grease Trap, Stainless Steel Under-Sink Interceptor
This stainless steel trap offers a compact, robust option for kitchens that need simple grease separation without heavy-duty capacity. Unlike the Canplas 3920A02S, which boasts a 20 GPM flow and larger capacity, the Wadoy unit is designed for lower flow applications (5 GPM) and smaller grease loads, making it ideal for under-sink setups or low-volume environments. Its stainless steel construction ensures durability and easy cleaning, but frequent maintenance — every 2-3 months — can be burdensome for busier kitchens. The sealed lid prevents leaks and odors, yet its limited capacity restricts use in high-demand settings. It’s a good choice for small cafes or quick-service outlets with limited grease output.
Pros:- Durable stainless steel construction
- Easy to install and maintain
- Sealed lid prevents leaks and odors
Cons:- Limited capacity requires frequent cleaning
- Suitable only for low flow applications, max 5 GPM
Best for: Small food service outlets or cafes with low grease output that need a compact, durable solution.
Not ideal for: High-capacity commercial kitchens or busy restaurants with flow rates above 5 GPM, where larger units are required.
- Capacity:8 lbs
- Material:201 stainless steel
- Dimensions:14 x 10 x 9.8 inches
- Flow Rate:5 GPM
- Installation Type:Under-sink
Our verdict“This trap is perfect for small kitchens with low grease volumes but unsuitable for high-volume commercial environments.”
Canplas 3920A02S Thermoplastic Grease Interceptor, 20 GPM, 40 lb Capacity
The Canplas 3920A02S offers a higher capacity (40 lb) and flow rate of 20 GPM, making it suitable for busier kitchens than the smaller Wentworth model. Its thermoplastic construction provides durability and resistance to corrosion, which is advantageous over metal units, especially in harsh environments. The quick-connect latching system and removable baffles facilitate cleaning, a significant improvement over models with fixed parts, but its 70 lb weight can complicate installation without assistance. Compared to the Wentworth 70 lb model, this unit is more user-friendly for maintenance, but its size and weight may require additional planning. This unit fits well in kitchens that need a reliable, certified system with a longer warranty.
Pros:- Removable baffles and quick-connect system for easy cleaning
- Durable thermoplastic construction
- Certified to industry standards with a 10-year warranty
Cons:- Heavy weight (70 lbs) may require help for installation
- Limited to specific flow and capacity specs, not adjustable
Best for: Medium to large kitchens needing a robust, easy-to-clean grease interceptor with high flow capacity.
Not ideal for: Small kitchens or those with installation constraints, due to its weight and size.
- Flow Rate:20 GPM
- Grease Capacity:40 lb
- Connection Size:2 inches
- Dimensions:23.5 x 17.5 x 16.3 inches
- Material:Thermoplastics
- Warranty:10 years
Our verdict“This interceptor is ideal for busy commercial kitchens seeking a durable, easy-maintenance unit with higher capacity than smaller options.”
20 lb Carbon Steel Grease Trap Interceptor for Restaurant Under Sink Kitchen
This under-sink grease trap shares many features with the Wentworth 10 GPM model but emphasizes safety with a non-skid deck plate and includes a T-Vent for proper ventilation. Its 20 lb capacity and 10 GPM flow rate align it with the smaller units, making it suitable for low to moderate grease loads typical of quick-service restaurants. Unlike the Wadoy trap, which is more compact, this model’s steel construction offers greater durability, though its lack of hub connections can limit installation options. It’s a solid choice for establishments that require a dependable, under-sink grease trap in a restaurant setting but not for high-flow or large-capacity needs.
Pros:- Durable corrosion-resistant steel
- Includes T-Vent for proper ventilation
- Removable baffles for cleaning
Cons:- No hub connections, limiting some installation options
- Designed specifically for restaurant use, not residential
Best for: Restaurant kitchens with moderate flow and grease loads, seeking a durable under-sink solution.
Not ideal for: High-volume kitchens or residential settings where flow exceeds 10 GPM or capacity is insufficient.
- Capacity:20 lb
- Flow Rate:10 GPM
- Material:11-gauge carbon steel
- Certification:PDI Certified
- Connections:No Hub
Our verdict“This unit suits restaurant kitchens that need a dependable, compact grease trap with safety features in place.”
Wentworth Commercial Grease Trap Interceptor, 70 lb Capacity, 35 GPM
This heavy-duty interceptor is designed for large, high-flow kitchens with a flow rate of 35 GPM and a grease capacity of 70 lbs. Its heavy-duty carbon steel and corrosion-resistant powder coating ensure longevity in demanding environments. Compared with the smaller Wentworth 20 lb model, it supports significantly higher flow and grease loads, making it ideal for large restaurants or industrial kitchen settings. The removable top cover allows for straightforward inspection and cleaning, but its weight makes installation more complex, often requiring specialized equipment. For kitchens with large throughput, this interceptor offers peace of mind, but it’s overkill for smaller operations and demands more space.
Pros:- High flow rate (35 GPM) and grease capacity (70 lbs)
- Heavy-duty construction with corrosion-resistant coating
- Easy access for cleaning and inspection
Cons:- Very heavy, requiring specialized installation equipment
- Designed strictly for commercial use, not residential
Best for: Large commercial kitchens or industrial food processing facilities with high grease output and flow demands.
Not ideal for: Small restaurants or kitchens with limited space and lower flow rates, where a more compact unit suffices.
- Flow Rate:35 GPM
- Grease Capacity:70 lb
- Material:Carbon Steel
- Finish:Powder-Coated
- Certification:PDI
Our verdict“This model is best suited for large-scale, high-demand kitchens where capacity and flow rate are critical factors.”
45 Gallon Commercial Grease Trap, 20 GPM Interceptor for Restaurant and Household Use
This grease trap stands out due to its robust 45-gallon capacity and thickened carbon steel construction, making it suitable for both restaurants and larger households. Compared to the smaller Wadoy stainless steel model, this unit offers greater durability and capacity, though it is noticeably heavier and more challenging to handle during installation. The detachable stainless steel filter basket ensures effective multi-layer filtration, which is an advantage over simpler models like the polyethylene option, but it requires regular cleaning to maintain performance. Its easy drainage with a faucet switch adds convenience, especially in busy commercial settings. However, its weight and size mean it’s less ideal for tight spaces or small residential kitchens.
Pros:- Durable thickened steel construction with rust-proof coating
- Effective multi-layer filtration system
- Easy to install and connect to existing plumbing
- Convenient drain oil with faucet switch
Cons:- Heavy and potentially difficult to handle during installation
- Requires regular cleaning of filters
- Overkill for small household needs
Best for: Restaurants or large households needing a durable, high-capacity grease trap that can handle frequent use.
Not ideal for: Small residential kitchens or settings with limited space, due to its heavy weight and large size.
- Capacity:45 gallons
- Flow Rate:20 GPM
- Material:Carbon Steel
- Thickness:2.5mm
- Inlet Type:Side Inlet
- Filter:Detachable Stainless Steel Filter Basket
Our verdict“This model suits larger commercial operations or sizable households where capacity and durability outweigh space constraints.”
Beseder Grease Trap Interceptor 10 GPM Plastic for Cafe, Bakery, Restaurant
This plastic grease trap is tailored for smaller-scale commercial kitchens, offering a 10 GPM flow rate that suits cafes and bakeries better than larger units like the 20 GPM models. Its ASME certification ensures safety and performance standards, yet the plastic material may not match the durability of metal options like the 45-gallon carbon steel trap. Its compact dimensions make installation straightforward under sinks, a distinct advantage over bulkier metal traps, though it might not support high-volume daily use. The multistage cleaning system improves maintenance, but the plastic construction could degrade faster with heavy or prolonged use, making it less suitable for busy, high-demand kitchens.
Pros:- Durable plastic (HDPE) resistant to rust and leaks
- Compact dimensions for easy under-sink installation
- ASME certified for safety and performance
- Easy to install with threaded connections
Cons:- Plastic material may be less durable over time
- Limited to 10 GPM flow rate, not suitable for larger operations
- Less robust than metal traps for heavy use
Best for: Small cafes or bakeries with moderate grease management needs and limited space.
Not ideal for: Large restaurants or high-volume kitchens requiring greater durability and flow capacity.
- Material:Plastic (HDPE)
- Flow Rate:10 GPM
- Dimensions:15.75 x 13.2 x 10.63 inches
- Inlet/Outlet Size:2 inches
- Wall Thickness:1/4 inch
- Certification:ASME A112.14.3
Our verdict“This trap fits small-scale, space-constrained foodservice environments where ease of installation and certification matter most.”
45 Gallons Commercial Grease Trap, 20 GPM Under Sink Grease Interceptor with Side Inlet, Carbon Steel, Black
Compared with the larger, more versatile 45-gallon unit, this under-sink grease trap emphasizes compact, black carbon steel construction with a side inlet for simplified installation. It offers the same 20 GPM flow rate, making it suitable for busy commercial kitchens, but its smaller size makes it more manageable in tight spaces. The threaded drain port and rubber sealing rings ensure secure, leak-proof connections, though the installation may require professional assistance due to its weight. Its heavy-duty steel promises longevity, but its limited color options and weight could pose handling challenges during setup. This unit is ideal where space is at a premium but capacity and durability are priorities.
Pros:- Durable high-quality carbon steel construction
- Easy to drain oil with built-in faucet
- Secure threaded drain design prevents leaks
- Suitable for various commercial and residential settings
Cons:- Installation may require professional help due to weight
- Heavy weight could be cumbersome to move
- Limited color options
Best for: Commercial kitchens needing a durable, heavy-duty grease trap that fits under sinks with limited space.
Not ideal for: Residential kitchens or small foodservice setups where larger capacity or less weight is preferred.
- Capacity:45 gallons
- Flow Rate:20 GPM
- Material:Carbon Steel
- Color:Black
- Inlet Type:Side Inlet
- Includes:Faucet for oil drainage
Our verdict“This pick makes the most sense for commercial environments with space constraints but high durability needs.”
Polyethylene Grease Interceptor, 2-inch, 20 GPM
This polyethylene interceptor offers a 20 GPM flow rate in a lightweight, corrosion-resistant package, making it suitable for quick setups and less demanding environments. Its overall dimensions of roughly 23.6 inches wide and 16.3 inches high allow for flexible placement, but the lack of detailed installation instructions or maintenance info makes it a less predictable choice compared to metal or certified units like the Canplas 40 lb trap. Its durable polyethylene construction resists rust and leaks, but it may not withstand heavy, continuous use in high-demand commercial kitchens as well as steel options. Overall, this unit prioritizes ease of handling over long-term durability.
Pros:- Durable polyethylene construction
- Efficient flow rate of 20 GPM
- Compact dimensions for flexible installation
- Resistant to rust and corrosion
Cons:- Limited information on installation specifics
- No detailed maintenance instructions provided
- Potential durability concerns under heavy use
Best for: Small restaurants or temporary installations where ease of setup and corrosion resistance are key.
Not ideal for: High-volume, heavy-use kitchens needing long-term durability and detailed maintenance guidance.
- Material:Polyethylene
- Inlet/Outlet Size:2 inches
- Flow Rate:20 GPM
- Width:23.6 inches
- Height:16.3 inches
- Includes:Flow Control
- Country of Origin:Canada
Our verdict“This lightweight polyethylene trap is best for quick, low-demand setups rather than long-term heavy-duty use.”
Commercial Grease Trap, 50 lbs Capacity, 20 GPM Flow Oil-Water Separator for Restaurants and Commercial Kitchens
Designed for demanding commercial kitchens, this unit offers a 50 lbs capacity and full assembly with no tools needed, making installation straightforward for experienced operators. Its three-layer filtration system enhances grease separation efficiency, comparable to the dual-path system of the 45-gallon steel trap but with added filtration depth. The large size of 27.5 x 19.7 x 19.3 inches ensures high-volume handling, but this also means it consumes significant space and is quite heavy, making handling more difficult. While ideal for busy restaurants and cafes, it may be too bulky for smaller setups or spaces with limited room.
Pros:- Durable, corrosion-resistant construction
- High-efficiency three-layer filtration
- Easy to install and maintain with removable baffle plates
- Fully assembled — no tools required
Cons:- Large footprint requiring ample space
- Heavy weight complicates handling during installation
- Primarily suited for commercial environments only
Best for: High-capacity restaurants or cafes requiring robust, easy-to-maintain grease separation solutions.
Not ideal for: Small kitchens or residential settings where space is limited and capacity needs are lower.
- Material:Q235 carbon steel
- Capacity:50 lbs
- Flow Rate:20 GPM
- Dimensions:27.5 x 19.7 x 19.3 inches
- Installation:Fully assembled
- Filtration System:Three-layer
Our verdict“This unit is best for busy commercial kitchens needing maximum capacity and robust filtration without the hassle of complex installation.”
Zurn GT2700-20-2NH Grease Trap, 20 Gallons Per Minute, 30 Pounds Capacity
The Zurn GT2700-20-2NH stands out for its robust, corrosion-resistant Dura-Coated fabricated steel construction, making it ideal for high-demand environments. Compared with the plastic Beseder Grease Trap, this model offers superior durability and odor control, though it comes with a shorter warranty and may require professional installation. Its slip-resistant cover and flow control features enhance safety and efficiency, making it suitable for busy commercial kitchens. However, the 1-year limited warranty may be a concern for long-term reliability. This trap is best suited for restaurants or industrial kitchens where durability and odor management are priorities. Those with smaller or residential setups should consider lighter options. Pros: Durable steel build, effective odor/grease control, slip-resistant cover with secure tie-down, flow control for consistent performance.
Cons: Limited warranty period, may need professional installation, higher initial cost.
Verdict: An excellent choice for commercial settings demanding durable, long-lasting grease management.Pros:- Durable and corrosion-resistant steel construction
- Effective odor and grease management
- Slip-resistant cover with secure tie-down
Cons:- Limited 1-year warranty
- Requires professional installation
- Higher upfront cost compared to plastic options
Best for: High-volume commercial kitchens needing reliable, durable grease trapping.
Not ideal for: Small restaurants or residential users who prefer lightweight, easy-install solutions.
- Flow Rate:20 gallons per minute
- Capacity:30 pounds
- Material:Dura-Coated fabricated steel
- Warranty:1-year limited
Our verdict“This trap excels in demanding commercial environments where durability and odor control are critical.”
Grease Interceptor, Matte, 40 lb. Capacity
Compared to the Zurn GT2700, this Grease Interceptor offers a higher capacity at 40 pounds, making it better suited for larger or more heavily used commercial settings. Its matte finish reduces glare and fingerprints, while its robust construction ensures longevity and solid grease and solids trapping. However, the lack of detailed installation dimensions and limited info on setup might challenge users unfamiliar with commercial plumbing. It’s a practical choice for industrial kitchens where capacity and durability outweigh ease of installation. Small cafes or residential operations should look elsewhere, as this unit is designed specifically for heavy-duty use. Pros: Heavy-duty construction, larger capacity, matte finish reduces glare and fingerprints, effective grease and solids trapping.
Cons: Insufficient installation details, may be overkill for small setups, not designed for residential use.
Verdict: Best suited for busy, industrial environments where capacity and durability are essential.Pros:- Heavy-duty, durable construction
- Higher capacity at 40 lb.
- Matte finish minimizes glare and fingerprints
Cons:- Limited installation detail info
- Overly large for small setups
- Designed mainly for industrial use
Best for: Industrial kitchens or large commercial facilities needing high-capacity grease trapping.
Not ideal for: Small cafes or residential kitchens where space and simplicity are priorities.
- Weight:40 lbs
- Capacity:40 lb
- Finish:Matte
- Category:Industrial & Scientific
Our verdict“This interceptor delivers high capacity and durability for demanding commercial applications, with some installation info gaps.”
Beseder Grease Trap Interceptor 4 GPM Plastic for Home, Cafe, Restaurant
The Beseder Grease Trap Interceptor makes sense for those needing a small, lightweight solution, especially when compared to bulkier steel models like the 50 lb Commercial Grease Interceptor. Its high-density polyethylene construction ensures resistance to rust and leaks, and its compact size fits under sinks with ease. Certified by ASME, it guarantees safety and reliable performance, but its 4 GPM flow rate limits its use to smaller operations or residential kitchens. Maintenance is straightforward but requires regular attention to keep grease buildup in check. This product is ideal for small cafes, homes, or bakery setups, but not suitable for high-volume commercial kitchens. Pros: Lightweight plastic construction, compact size, ASME certified, easy to install.
Cons: Limited flow capacity, overkill for large restaurants, requires consistent maintenance.
Verdict: A perfect fit for small-scale applications where space and ease of use matter most.Pros:- Durable high-density polyethylene
- Compact size fits under sinks
- ASME certified for safety and performance
Cons:- Limited flow rate of 4 GPM
- Not suitable for large commercial operations
- Requires regular maintenance
Best for: Small cafes, home kitchens, or bakery setups with limited flow needs.
Not ideal for: High-volume restaurants or industrial kitchens requiring large flow capacity and heavy-duty construction.
- Flow Rate:4 GPM
- Material:High-density polyethylene (HDPE)
- Dimensions:15.75 x 13.2 x 10.63 inches
- Wall Thickness:1/4 inch
- Inlet Connection:2 inches
Our verdict“This plastic interceptor offers a practical, space-saving solution for small-scale grease management needs.”
50 LB Commercial Grease Interceptor 25 GPM with 3″ Non-Threaded Connections
Compared with the Zurn GT2700 and Beseder, this 50 lb capacity, 25 GPM flow rate interceptor is designed for very busy kitchens. Its steel construction ensures longevity, and the removable baffle simplifies cleaning—an advantage over models without such features. The 3-inch non-threaded connections facilitate straightforward installation, but the large size demands significant space and potentially professional setup. For large restaurants or institutional kitchens, this unit provides the capacity and durability needed, yet it might be excessive for smaller operations or those with limited space. If space is a concern, consider smaller options, but for heavy use, this model offers reliability. Pros: High capacity at 50 lb, 25 GPM flow rate, durable steel construction, removable baffle simplifies cleaning.
Cons: Size may require substantial space, installation can be complex, overkill for small setups.
Verdict: An ideal choice for large-scale, high-demand kitchens where capacity and durability outweigh space constraints.Pros:- High capacity and flow rate suitable for busy kitchens
- Durable steel construction ensures longevity
- Removable baffle for easier cleaning
Cons:- Large footprint requiring significant space
- Installation may need professional assistance
- Potentially overbuilt for small kitchens
Best for: Large restaurants or institutional kitchens with high throughput needs.
Not ideal for: Small cafes or residential kitchens with limited space and lower flow requirements.
- Capacity:50 lb
- Flow Rate:25 GPM
- Connections:3″ Non-Threaded
- Dimensions:27 1/8″ L x 18 5/8″ W x 17 1/4″ H
Our verdict“This heavy-duty, high-capacity interceptor is best reserved for large-scale operations demanding long-term reliability and performance.”
How We Picked
I evaluated these grease trap interceptors based on key factors relevant to high-volume commercial settings. Capacity and flow rate consistency are prioritized to handle 20 GPM effectively without overflow. Build quality, including corrosion resistance and durability, was critical to ensure long-term reliability. Ease of maintenance was also considered, focusing on accessibility for cleaning and servicing. Cost-performance balance was examined to identify options that deliver value without sacrificing essential features. These criteria led to a ranking that favors reliable, easy-to-maintain models suitable for busy kitchens and commercial environments.Factors to Consider When Choosing Grease Trap Interceptor 20gpm
Selecting the right grease trap interceptor involves more than just matching the flow rate. Consider the capacity relative to your kitchen’s size and expected grease load to prevent overflows. Durability is vital, especially if the unit will operate continuously; thermoplastic and stainless steel options tend to last longer. Ease of cleaning can reduce ongoing maintenance costs, so look for models with accessible inlets and outlets. Additionally, the installation location—whether under-sink or standalone—impacts the size and design features you should prioritize. Finally, balance your budget with the expected lifespan and performance to choose a model that offers the best value for your specific needs.Capacity and Flow Rate
Matching the grease trap’s capacity and flow rate to your kitchen’s volume is crucial. A 20 GPM interceptor should handle your peak demand without overflow, but oversizing can lead to unnecessary costs and space issues. Conversely, undersized units risk frequent backups, which can disrupt operations. Consider your busiest periods and ensure the selected model can accommodate those without compromising efficiency.Material and Durability
Material choice impacts longevity. Thermoplastics like polyethylene resist corrosion and are lightweight, making installation easier. Stainless steel, although more expensive, offers exceptional durability and resistance to harsh cleaning chemicals. Steel units are better suited for environments with high humidity or exposure to aggressive cleaning agents, whereas plastics may suffice in less demanding settings.Ease of Maintenance
A grease trap that’s easy to clean saves time and reduces downtime. Look for models with removable covers, clear access points, and minimal internal obstructions. Some units include built-in baffles or sludge hoppers that facilitate cleaning, while others may require specialized tools. Investing in a model with straightforward maintenance features can significantly lower long-term operational costs.Installation and Size
Proper placement depends on available space and plumbing configuration. Compact units fit under sinks or in tight spaces but may have limited capacity, requiring more frequent cleaning. Larger, standalone interceptors are suitable for high-volume operations but demand more space and robust support structures. Assess your site before choosing to avoid costly modifications later.Cost and Value
While initial price is a consideration, the overall value includes longevity, maintenance costs, and performance. Higher-priced models often provide longer service life and better features, reducing total ownership costs. Conversely, budget options may suffice for smaller operations or infrequent use but could lead to higher expenses over time if replacements or repairs are needed sooner.Frequently Asked Questions
How often should I clean a 20 GPM grease trap interceptor?
Cleaning frequency depends on usage volume and grease load. For busy kitchens operating near capacity, cleaning every 1 to 3 months is typical. Less active settings might only need cleaning twice a year. Regular inspections can help determine when cleaning is necessary, with signs including foul odors, sluggish drainage, or visible grease buildup. Proper maintenance ensures the interceptor functions effectively, preventing costly backups or code violations.
Can I install a 20 GPM grease trap under a sink?
Yes, smaller or compact models designed for under-sink installation are available, but you need to ensure the size and capacity match your kitchen’s flow needs. Under-sink interceptors are convenient but may have limited capacity, leading to more frequent cleaning. For high-volume operations, a standalone unit with higher capacity and flow rate may be preferable, even if it requires more space and a dedicated installation point. Carefully assess your available space and expected grease load before choosing.
What material is best for a long-lasting grease trap?
Stainless steel generally offers the longest lifespan due to its corrosion resistance and strength, especially in demanding environments. Thermoplastics like polyethylene are also durable and resist corrosion, making them suitable for many settings. Steel units tend to be more expensive upfront but can withstand harsher conditions, while plastics are lighter and easier to handle. Select based on your environment’s exposure to chemicals, moisture, and cleaning routines.
Are larger capacity grease traps worth the extra cost?
In most cases, larger capacity units provide better performance during peak times and reduce the frequency of maintenance. They are especially valuable for busy kitchens or facilities with high grease loads. However, they also require more space and higher initial investment. If your operation can justify the added capacity, the long-term savings on cleaning and downtime often outweigh the upfront costs. For smaller or less busy setups, a smaller model may be sufficient and more economical.
What features should I look for in a grease trap interceptor for easy cleaning?
Look for models with removable covers, clear access panels, or quick-release lids that facilitate cleaning. Built-in baffles or sludge hoppers can also make removal of grease and solids easier. Some units are designed with minimal internal obstructions to simplify draining and scrubbing. Investing in a model with these features can significantly reduce the effort and time spent on routine maintenance, helping you keep the system running smoothly without frequent service interruptions.
Conclusion
For those operating a busy commercial kitchen or restaurant, the Wentworth Commercial Grease Trap Interceptor offers the best overall balance of capacity, durability, and ease of maintenance. Budget-conscious buyers or smaller setups might find the Beseder Grease Trap Interceptor 4 GPM a practical choice, providing reliable performance at a lower cost. If you’re seeking a premium option with superior corrosion resistance, the Canplas 3920A02S stands out. Beginners or smaller cafes should prioritize models with simple installation and maintenance features, like the Beseder Plastic Interceptor. Ultimately, selecting the right interceptor depends on your specific grease load, space constraints, and budget—use this guide to match your needs precisely.
