Rockford RP-75-SS All Stainless Grease Interceptor – 150 lb, 75 GPM, 4" No-Hub

Both units share identical 75 GPM / 150 lb performance and the same dimensions. The key difference is material: the RP-75 is all-welded carbon steel with enamel coating inside and out; the RP-75-SS is all stainless steel — body, cover, and fasteners — with no enamel coating. The SS version carries a lifetime warranty versus the standard warranty on the carbon steel model.

The RP-75-SS holds 150 lb of grease and sludge with a 90-gallon static liquid holding capacity — designed for high-volume commercial kitchens, cafeterias, and large food processing facilities with heavy continuous grease output.

Yes. At 265 lb (approximately 325 lb with pallet), the RP-75-SS ships by freight carrier and requires lift gate service to unload. Free freight is included for shipments to the lower 48 states. If your facility does not have a loading dock or forklift, please add lift gate service at checkout.

Yes. The RP-75-SS supports both on-the-floor and flush-with-the-floor installation. The 3/16" stainless diamond tread cover is pedestrian-rated for walk-over traffic and secured with stainless flat-head screws.

Yes. The RP-75-SS is certified to the Plumbing & Drainage Institute PDI-G101 standard — the nationally recognized benchmark for grease interceptor performance required by most municipal plumbing codes and health departments.

The RP-75-SS is backed by a lifetime manufacturer's warranty. All stainless construction — with no enamel coating to crack or corrode — supports this warranty in practice: the unit is engineered to provide decades of trouble-free service.