When you're choosing a grease trap interceptor for warewashing sanitation grease, the real decision is how much flow your kitchen needs versus how much you want to invest. Two very different options sit at opposite ends of the price spread: a compact stainless steel grease trap interceptor set and a heavier carbon steel under-sink interceptor. One gives you a small, accessory-included unit for light-to-moderate duty. The other gives you a higher-flow, serviceable build for busier under-sink kitchen lines. Here's how to choose.
Quick verdict
If you want a compact, lower-cost interceptor and don't need a high-flow commercial line, pick the stainless steel grease trap interceptor set. If your kitchen needs a higher flow rate and you prefer a build with removable baffles and a corrosion-resistant coating, choose the carbon steel under-sink interceptor with the NSF designation in its product name.
At a glance
| Product | Price | Material | Capacity or Flow | Standout Item |
|---|---|---|---|---|
| Stainless Steel Grease Trap Interceptor Set For Restaurant Kitchen Commercial | $49.02 | Stainless steel | 18-20L capacity; 4.8cm inlet/outlet | Includes drainage pipe and lid |
| Carbon Steel Grease Trap Interceptor for Restaurant Under Sink Kitchen | NSF | $535.00 | Carbon steel with corrosion-resistant coating | 30 LB trap; 15 GPM flow rate | Removable baffles, T-vent, non-skid deck plate |
Where each product wins
The stainless steel set wins for upfront cost, compact dimensions, and the included drainage pipe and lid. The carbon steel unit wins for flow rate, heavier-duty material, and maintenance-friendly extras like removable baffles and a T-vent.
Product notes
Stainless Steel Grease Trap Interceptor Set For Restaurant Kitchen Commercial
At $49.02, this stainless set is the lower-priced entry point in this head-to-head, and it sits at the low end of the spread that runs to $535.00. Its 18-20L capacity and 35 x 25 x 23 cm footprint make it a compact package, and the included drainage pipe and lid give you the basics to set up the interceptor. The 4.8cm inlet and outlet ports and the 2.2cm grease outlet are sized for straightforward oil-water separation in restaurant kitchen service. It's the one to pick if you want to start with a smaller investment and still get stainless steel construction with smooth-thread details. The trade-off is that this is a compact 18-20L interceptor rather than a 15 GPM-rated unit, so a heavy-volume line will need the bigger option.
Carbon Steel Grease Trap Interceptor for Restaurant Under Sink Kitchen | NSF
At the other end of the price spread, the carbon steel under-sink interceptor is a $535.00 investment. The 30 LB trap is rated at 15 gallons per minute, making it the stronger candidate for busy kitchens that move a lot of hot water and grease. The 11-gauge carbon steel shell with corrosion-resistant coating, removable baffles, T-vent, and non-skid deck plate point to a more serviceable, heavier-duty build. It also carries PDI certification and an NSF designation in the product name. If you need high flow, cleaner maintenance access, and that kind of build, this is the unit to budget for. The limitation is the price: with roughly $486 separating the two units, it only makes sense if your under-sink workload actually needs the 15 GPM capacity.
Final choice by use case
Pick the stainless steel grease trap interceptor set for a small or low-flow kitchen station where budget matters and moderate grease loads are the norm. Pick the carbon steel under-sink interceptor for a main kitchen line where high flow and serviceable construction justify the bigger investment. Choose once you know your flow demand, not before.
