When you're shopping for warewashing sanitation grease equipment, the two interceptors here take different routes to the same job: separating oil and grease from kitchen wastewater. One is a large 20-pound system with a 4-layer filter and all the installation accessories included. The other is a stainless steel interceptor with compact dimensions and an automatic rain shut-off. Your choice comes down to how much grease you handle, how much space you have, and what you want to spend.
Quick Verdict
If your kitchen processes high volumes of cooking oil and you want a unit that arrives with a lid, filter basket, pipe, and oil drain valve, the 20 LB Grease Trap Interceptor is the more complete package at USD 130.90. If you're looking to spend significantly less and value a stainless steel build with an automatic shut-off for open-air or outdoor placement, the Grease Trap Interceptor Stainless Steel delivers the essentials for USD 49.02.
Comparison at a Glance
| Feature | 20 LB Grease Trap | Stainless Steel Interceptor |
|---|---|---|
| Price | USD 130.90 | USD 49.02 |
| Material | Mix of 201 stainless steel, alloy, brass, and plastic with steel wire | Stainless steel |
| Capacity | 20 lb (86L / 22.7 gal) | - |
| Inlet/Outlet | Inlet and outlet both 4.8cm/1.9in | Wastewater inlet 4.8cm/1.9in, grease outlet 2.2cm/0.86in |
| Filtration | 4-layer filter | Four stages of filtration |
| Extra Features | Includes lid, filter basket, pipe, oil drain valve; 80cm/31.5in hose | Automatic shut-off for rain |
Where Each Product Wins
The 20 LB Grease Trap wins for high-volume kitchens. Its stated 20 lb capacity and included accessories make it a more turnkey package, and the 80cm hose gives you extra reach during installation. It also has a larger outlet diameter than the stainless steel unit, which can help move wastewater more freely.
The Stainless Steel Grease Interceptor wins for compact spaces and open-air installations. Its dimensions of 35x25x23cm and stainless steel body make it easy to fit into tighter under-sink areas, and the automatic shut-off that responds to rain is a unique advantage if you plan to place it outside.
20 LB Grease Trap Interceptor

The 20 LB model is the heavyweight here. Its stated 20 lb (86L/22.7 gal) capacity suits kitchens that produce a lot of cooking oil and food waste. It also arrives with a lid, filter basket, pipe, and oil drain valve, so you don't need to source those separately. The 4-layer filter and 80cm hose add to its ready-to-install feel. On the downside, the price is significantly higher at USD 130.90, and the construction is a mix of 201 stainless steel, alloy, brass, and plastic with steel wire rather than a single-material stainless build. If you're looking for a large-capacity system with the necessary accessories included, this is the one.
Stainless Steel Grease Interceptor

If you want a simpler, lower-cost unit, the Stainless Steel Grease Interceptor at USD 49.02 is a practical alternative. Its stainless steel body is described as durable, and the automatic shut-off is a standout feature: it's designed to shut down when it rains, which makes it suitable for open-air placement. The four-stage filtration matches the 20 LB model's 4-layer approach, so you're not losing filtration capability. The trade-off is that it's compact at 35x25x23cm, with a narrower grease outlet of 2.2cm/0.86in. For smaller kitchens or outdoor setups where space is tight and budget matters, this unit covers the essentials.
Final Choice by Use Case
If you run a restaurant or canteen with high grease output and want a large, accessory-packed unit, choose the 20 LB Grease Trap Interceptor. If you need a lightweight, stainless steel interceptor for occasional use, open-air placement, or a tighter workspace, the Grease Trap Interceptor Stainless Steel is the smarter pick at almost $82 less.