Choosing an under-sink grease interceptor means deciding between more grease capacity and a lower upfront price. Two very different options show the trade-off clearly: a large plastic trap at $99.00 and a stainless steel under-sink trap at $49.03. Both help keep warewashing sanitation grease and food waste from clogging pipes, but the right choice depends on how much grease your kitchen puts down the drain. The key is matching the trap to your sink, the volume of grease you produce, and how much maintenance you want.
Quick verdict
For heavier commercial use, the Beseder plastic interceptor is the stronger choice. It holds more grease and uses durable plastic walls. For lighter duty, the under-sink trap wins on value, with stainless steel construction and a smaller footprint. Both are legitimate options, but they serve different kitchen workloads.
At a glance
| Feature | 70 lb Plastic Interceptor | Stainless Under-Sink Grease Trap |
| Price | $99.00 | $49.03 |
| Capacity | 70 lb | 18-20L |
| Material | Plastic | Stainless steel |
| Condition | New - Open box | New |
| Notable details | ASME-certified, 1/4-inch walls, 2-inch thread side connection | Four-stage filtration, automatic shut-off device, compact dimensions |
Where each product wins
If grease volume is the deciding factor, the larger unit wins. The Beseder trap holds far more grease and uses 1/4-inch thick plastic walls with a 2-inch thread side connection. It is also ASME-certified and comes in a blue finish.
If material and size matter more, the under-sink trap wins. It offers corrosion-resistant stainless steel, an automatic shut-off device for open-air installations, and easily fits into tight spots.
Product notes
Commercial Grease Interceptor Trap 70 lb
The Beseder plastic interceptor is built for kitchens that send a lot of oily water down the drain. Its large capacity means you won't need to empty it as often, and the 1/4-inch thick plastic walls add durability without the rust risk of metal. The 2-inch thread side connection makes it straightforward to pair with a sink drain for many under-counter setups. The large capacity is the headline feature here, and it makes sense for a kitchen that runs a lot of water through the sink. The catch is the buying condition: it is new open-box, and the seller states all sales are final with no returns. That takes away the safety net if something feels off when it arrives. If you want maximum grease capacity and are comfortable with a final-sale purchase, this is the stronger unit.
Stainless Under Sink Grease Trap
The stainless steel under-sink grease trap is a solid everyday choice for routine warewashing sanitation grease. Its steel body is built to resist corrosion and last, while the four-stage filtration separates oil from water before it reaches the drain. The automatic shut-off device is a useful extra for open-air placement, and the compact size helps it fit into tight cabinets. Easy installation is a useful bonus. The main limitation is capacity: at 18-20L, it is smaller than the larger plastic unit, so you may need to empty it more frequently. It is a good fit for a prep sink or a small restaurant station where the load stays moderate. If your kitchen produces a modest amount of grease and you want durable stainless construction, this trap is a practical pick.
Final choice by use case
For a busy kitchen that handles heavy frying or large volumes of oily wastewater, choose the Beseder plastic interceptor. The large capacity gives it a clear edge for high-volume drains.
For a lower-volume kitchen or a single sink, choose the stainless steel under-sink grease trap. Its efficient filtration makes it a practical everyday pick. Think about your typical daily grease volume and choose accordingly.
