Grease trapped under a sink can turn a clean commercial kitchen into a plumbing nightmare. For a warewashing sanitation grease setup, an under-sink grease interceptor is the first line of defense between your drain and a costly blockage. You need a reliable interceptor that separates oil and water before they reach the drain line, and it has to fit the tight space below the sink. These two under-sink grease traps do exactly that, and they share nearly every spec: 18-20L capacity, 35 x 25 x 23cm overall dimensions, 4.8cm wastewater inlet and outlet, and a 2.2cm grease outlet. The real differences are in the extras and the 4-cent price gap.
Quick verdict
Choose the lower-priced USD 49.03 listing if you want extra protection for open-air or busy grease loads. Choose the USD 49.07 listing if you prefer a straightforward stainless interceptor with a durable build and no extra mechanisms to worry about.
At a glance
| Feature | $49.07 listing | $49.03 listing |
|---|---|---|
| Price | USD 49.07 | USD 49.03 |
| Capacity | 18-20L | 18-20L |
| Material | Stainless steel | Stainless steel |
| Overall dimensions | 35 x 25 x 23cm | 35 x 25 x 23cm |
| Wastewater inlet/outlet | 4.8cm / 4.8cm | 4.8cm / 4.8cm |
| Grease outlet | 2.2cm | 2.2cm |
| Extra features | Creative design and durable material | Automatic shut-off and four-stage filtration |
Where each product wins
The four-stage version wins on feature set, with extras that help in open-air or heavy-use situations. The core design version wins on simplicity, keeping the same stainless build and compact footprint without added mechanisms.
Product notes
Commercial Grease Interceptor - Four-Stage Filtration Version
This version goes a step further. It highlights easy installation, convenient use, and easy operation, and it includes an automatic shut-off device that stops the trap when it rains. That makes it a solid choice for open-air installations or outdoor drainage areas. It also describes four stages of filtration, which can be a real help when dealing with mineral, animal, or vegetable oils as well as mixed emulsified oils. The package includes the interceptor, a drainage pipe, and a lid, and the unit shares the same physical layout as the other version. The only real downside is that the automatic shut-off won't matter if your trap sits fully indoors; in that case, the core design version may be all you need.
Commercial Grease Interceptor - Core Design Version
This version focuses on the creative design, durable material, and beautiful appearance. It's a stainless steel unit with a compact footprint that fits under most sinks. The package includes the interceptor, a drainage pipe, and a lid. This is the pick if you want the essential grease-separation job done without extra mechanisms. The listed features emphasize build quality rather than extra filtration stages, so if you need the extras described in the other listing, you'd look there. For a straightforward installation under a standard sink, this version gives you the same stainless build and the same easy access to the grease outlet.
Final choice by use case
Choose the four-stage version if you're placing it somewhere rain can reach or if your kitchen sends heavy mixed oils down the drain. Choose the core design version if you want the same stainless build and capacity without extra features, and your drain setup is fully indoors. For most standard under-sink installations, the four-stage version's extra features make it the more flexible buy.
