If you are searching for a 30-gallon grease trap, first check whether you need a tank measured in gallons or an interceptor rated by grease capacity in pounds and flow in gallons per minute. The products below include three 30-pound, 15-GPM models, plus alternatives with different capacities and materials. The Wentworth is best for heavy-duty steel construction, the AmGood for buyers seeking a listed PDI certification, and the Canplas for a higher stated flow rate. Confirm local requirements and the actual capacity needed before choosing.
| Product | Listed capacity and flow | Best suited for |
|---|---|---|
| Wentworth | 30 lb; 15 GPM | Heavy-duty steel construction |
| Industrial | 30 lb; 15 GPM | Removable baffle and lid handles |
| Canplas | 40 lb; 20 GPM | Higher stated flow capacity |
| Beseder | Listing gives conflicting flow figures | Compact plastic installation |
| AmGood | 30 lb; 15 GPM | PDI-certified steel interceptor |
Wentworth 30-Pound Commercial Grease Trap
The Wentworth interceptor is rated for a 15-GPM flow rate and 30 pounds of grease retention. It is made from 11-gauge carbon steel, described as approximately 1/8 inch thick, with a powder-coated finish intended to help protect against corrosion and everyday wear.
Best for: Commercial kitchens that need a 30-pound, 15-GPM unit with a heavy-duty steel body. Its stated material and finish make it a practical option for buyers prioritizing robust construction.
Limitation: This is a 30-pound grease-capacity product, not a listing for a 30-gallon tank. Confirm its dimensions and connection requirements with the seller or installer before purchase.
Industrial 30-Pound Grease Interceptor
This commercial interceptor is listed at 30 pounds of grease capacity and a 15-GPM flow rate. Its features include a removable baffle for cleaning and dual pull handles on the lid. The listing specifies 2-inch non-threaded connections.
Best for: Restaurants, cafes, hotels, bars, and schools looking for a 30-pound, 15-GPM unit with maintenance-oriented details. Choose this model if a removable baffle and lid handles are useful for the planned cleaning routine.
Limitation: The connections are non-threaded, so verify that they suit the intended plumbing layout. The listed capacity is in pounds, not gallons.
Canplas 20-GPM Thermoplastic Interceptor
The Canplas model is listed at 20 GPM with a 40-pound grease capacity and 2-inch connections. Its features also state an actual grease capacity of 70 pounds, which differs from the 40-pound capacity in the product name. The listing identifies it as a thermoplastic interceptor.
Best for: Buyers whose required flow rate is higher than 15 GPM and who are considering a thermoplastic unit. Its listed 20-GPM rate distinguishes it from the 30-pound options.
Limitation: The capacity details conflict: the name says 40 pounds, while the feature text says 70 pounds actual capacity. Confirm the applicable rated capacity before selecting it, and do not mistake its flow rate for tank volume.
Beseder Compact Plastic Grease Trap
The Beseder trap has listed dimensions of 15.75 by 13.2 by 10.63 inches and a plastic body with 1/4-inch walls. Its product name says 10 GPM, but the feature text describes a 4-GPM ASME-certified trap and a multistage system for oily water.
Best for: Buyers who need a compact plastic unit and can confirm that its actual flow rating and installation details meet their requirements. The stated dimensions may help when evaluating a limited under-sink space.
Limitation: The flow-rate information conflicts between the name and features. Verify the model’s rating and certification details before relying on it for a specific commercial application.
AmGood 30-Pound Carbon Steel Grease Trap
The AmGood interceptor is listed with a 30-pound grease capacity and a 15-GPM flow rate. Its features state that it is PDI certified and includes no-hub connections and a T-vent.
Best for: Commercial kitchen buyers who need a 30-pound, 15-GPM steel unit and specifically want the listed PDI certification. Its connection and vent details are useful to review during plumbing planning.
Limitation: Confirm that the no-hub connections and included T-vent suit the installation. The product is not described as a 30-gallon tank.
Buying Guide: How to Choose a Grease Trap
Do you need 30 gallons or 30 pounds?
Gallons measure liquid volume; pounds here describe grease retention capacity. GPM means gallons per minute of flow, not the size of the tank. These measurements are not interchangeable. If a specification, inspector, or plumbing plan calls for 30 gallons, do not assume a 30-pound interceptor meets that requirement.
How much flow capacity is appropriate?
Compare the required flow rate with the fixture load and local plumbing requirements. The products here range from the Beseder listing’s disputed 4- or 10-GPM figures to Canplas at 20 GPM. The three 30-pound models are listed at 15 GPM. Have an installer or local authority confirm the required rating.
Which material and maintenance features matter?
Steel models may appeal to buyers prioritizing a metal body, while the Canplas and Beseder listings describe plastic or thermoplastic construction. Compare access for cleaning, removable components, lid handles, connection type, dimensions, and available space. A compact footprint alone does not establish that a model has enough capacity for the application.
What should you verify before ordering?
Check the model’s rated capacity, flow rate, dimensions, connection size and style, vent requirements, and any required certification. Ask the installer or local plumbing authority whether the selected unit meets applicable codes. Pay particular attention to listings with conflicting specifications.
Frequently Asked Questions
Is a 30-pound grease trap the same as a 30-gallon grease trap?
No. Pounds indicate grease retention capacity in these listings, while gallons measure volume. Confirm which measurement your project requires.
What does 15 GPM mean?
It means a listed flow rate of 15 gallons per minute. It does not mean the interceptor holds 15 gallons.
Which listed product has the highest stated flow rate?
The Canplas model is listed at 20 GPM. Its product information also gives conflicting grease-capacity figures, so verify capacity separately.
Which option lists a PDI certification?
The AmGood product features state that it is PDI certified. Confirm that the certification and model meet the requirements for your installation.
Should I choose a grease trap based only on under-sink dimensions?
No. Check the required flow and grease capacity, connections, access for cleaning, and local requirements along with the available space.