Line & Ladle

Stainless Under-Sink Grease Interceptor Review: Is This 18-20L Grease Trap Right for Your Kitchen?

Looking for a compact grease interceptor? This stainless under-sink grease trap comes in at USD 49.03 with an 18-20L capacity and 35×25×23cm dimensions. Here's how it fits small commercial kitchens, prep sinks, and foodservice setups.

Last updated Aug 17, 2026

Choosing a grease interceptor for a commercial sink usually comes down to three questions: how much waste grease will you actually produce, how much space is under the sink, and will the unit be easy to clean. The Commercial Grease Interceptor Grease Trap Stainless Under Sink Grease Trap US is designed for those tight under-sink spots, and for a listed USD 49.03 it promises a stainless steel build that fits a compact cabinet.

Quick verdict

For a small prep kitchen or a single-station food cart setup, this under-sink grease trap hits the basics. The stainless steel body is an upgrade over typical plastic traps, and the 35 × 25 × 23 cm footprint fits into most standard under-sink spaces.

Who it suits

This interceptor is best for foodservice operations that handle moderate amounts of cooking oil, animal fat, and mixed food grease from a prep sink or pot washing area. The 4.8 cm wastewater inlet and outlet are sized to match standard small-diameter plumbing, while the 2.2 cm grease outlet provides a separate access point for removing collected oil. If you're running a heavy-duty fryer bank with constant hot grease discharge, you will likely need a much larger unit, but for everyday prep and rinse water the capacity is practical.

What stands out from the listed details

The construction is the first thing to notice. Stainless steel is a sensible choice for anything that sits under a sink: it resists corrosion, handles heat from hot wastewater, and wipes clean easily. The description also points to even threading on the separator head, which helps the lid and drain fittings seat consistently.

Commercial Grease Interceptor Grease Trap Stainless Under Sink Grease Trap US

Commercial Grease Interceptor Grease Trap Stainless Under Sink Grease Trap US

The package includes the grease trap interceptor, one drainage pipe, and one lid. With an 18-20L effective volume and the compact 35 × 25 × 23 cm footprint, it offers a straightforward way to separate oil from water before it heads down the drain. The main limitation to note is the fixed 4.8 cm connection size - if your existing sink tailpiece is a different diameter, you'll need an adapter to make it work.

Meaningful trade-offs

There are a few trade-offs to weigh. The capacity is listed as a range rather than a single exact figure, so confirm the published rating against your local grease-trap sizing rules. The 23 cm height of the unit is also something to measure carefully: not every under-sink cabinet leaves that much vertical clearance. And because this is a passive gravity separator, it will need regular manual cleaning of the grease outlet - no product in this class eliminates that chore entirely.

Bottom line

At USD 49.03, this stainless under-sink grease interceptor is a sensible choice for a compact commercial kitchen that needs reliable oil-and-water separation without a huge plumbing project. Match it to your drain size and under-sink space, and it can handle the grease load from a typical prep sink or light-duty wash station.

Products in this article
Commercial Grease Interceptor Grease Trap Stainless Under Sink Grease Trap USUSD 49.03View on eBay
Commercial Grease Interceptor Grease Trap Stainless Under Sink Grease Trap USUSD 49.03View on eBay

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