Rockford RP-50-LO Low-Profile Grease Interceptor – 100 lb, 50 GPM, 4" No-Hub
Rockford RP-50-LO Low Profile Grease Trap — 50 GPM, 100 lb Capacity
The Rockford RP-50-LO is a heavy-duty, all-welded steel grease interceptor sized for busier kitchens that still need a low installation height. Standing just 16″ tall, this low-profile (“Low Boy”) design fits shallow cabinets and recessed pits while handling a 50 GPM rated flow and 100 lb of grease capacity — a clear step up from the 35 GPM model. Built to PDI G-101 standards by Rockford Separators, it’s a dependable, code-ready choice for restaurants, bars, and commercial kitchens needing reliable FOG (fats, oils & grease) separation without a deep dig.
Key Features of the RP-50-LO
Every detail of this interceptor is engineered for durability, easy maintenance, and a clean flush-with-floor or on-the-floor install.
Low-Profile Steel Body
All-welded steel interceptor standing only 16″ tall — high 100 lb grease capacity packaged in a height that still clears shallow cabinets and recessed pits.
4″ No-Hub Connections
4.00″ no-hub inlet and outlet with an integral flow control device hold flow at the rated 50 GPM for proper PDI-compliant separation.
Walk-On Treadplate Cover
Removable 3/16″ nonskid diamond treadplate cover is rated for pedestrian traffic and secured with stainless steel flat-head screws over a leak-proof gasket.
Enamel Coated, Inside & Out
Factory enamel coating on both interior and exterior surfaces resists corrosion from grease, water, and cleaning chemicals for a longer service life.
PDI G-101 Listed
Designed and tested to the Plumbing & Drainage Institute PDI G-101 standard, so it meets the code requirements most municipalities specify for grease interceptors.
Flush or On-Floor Install
Mounts on the floor or flush with the floor, giving plumbers flexibility on layout while keeping the cover accessible for routine grease pump-outs.
Sizing tip: Grease interceptors should be sized to the connected fixture flow and your local plumbing code. The 50 GPM / 100 lb RP-50-LO suits mid-size kitchens; for lighter loads the 35 GPM RP-35-LO may be a better fit, while higher flows step up to larger RP-series models.
Ideal Applications
The higher 50 GPM / 100 lb capacity and walk-on cover make the RP-50-LO a fit wherever a low-clearance, code-compliant grease trap handles a busier kitchen.
RP-50-LO Specifications
| Manufacturer | Rockford Separators |
|---|---|
| Model | RP-50-LO (Low Profile) |
| Rated Flow | 50 GPM intermittent flow |
| Grease Capacity | 100 lb |
| Liquid Holding Capacity | Approx. 50 gallons |
| Inlet / Outlet | 4.00″ no-hub, with flow control device |
| Construction | All-welded steel, enamel coated inside & out |
| Cover | Removable 3/16″ nonskid diamond treadplate, stainless flat-head screws |
| Gasket | Heavy-duty leak-proof |
| Installation | On-the-floor or flush-with-floor; pedestrian-traffic rated |
| Length (side to side) | 52.25″ |
| Width (front to back) | 23″ |
| Height (floor to top) | 16″ |
| Bottom to Center of Inlet | 11″ |
| Approx. Weight | 210 lb |
| Standard | PDI G-101 listed |
| Optional (add'l cost) | Anchor flange, epoxy coating, stainless steel construction, integral extension, custom inlet/outlet size, aluminum cover, threaded connections |
Frequently Asked Questions
What does the “LO” in RP-50-LO mean?
“LO” stands for Low Profile (sometimes called “Low Boy”). At 16″ tall it fits under sinks and in shallow floor recesses where a standard-height interceptor would not clear, while still offering 100 lb of grease capacity.
What flow rate and grease capacity does it provide?
The RP-50-LO is rated for 50 GPM intermittent flow and holds up to 100 lb of grease, with roughly 50 gallons of liquid holding capacity — suited to mid-size commercial kitchens.
How is it different from the RP-35-LO?
The RP-50-LO steps up to 50 GPM flow and 100 lb grease capacity (versus 35 GPM / 70 lb on the RP-35-LO) and is larger at 52.25″ long and 16″ tall, making it better for busier kitchens.
Is the RP-50-LO code compliant?
Yes. It is designed and manufactured to the Plumbing & Drainage Institute PDI G-101 standard, which most jurisdictions reference for grease interceptors. Always confirm sizing and local requirements with your plumbing inspector.
Can the cover be walked on?
Yes. The removable 3/16″ nonskid diamond treadplate cover is rated for pedestrian traffic and is secured with stainless steel flat-head screws over a heavy-duty leak-proof gasket.
Can it be installed flush with the floor?
Yes. The RP-50-LO is built for either on-the-floor or flush-with-floor installation, making it flexible for new construction and tenant build-outs with shallow slab recesses.
| Brand | Rockford Seperators|Grease Traps |
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| SKU | RP-50-LO |
| Brand | Rockford Seperators|Grease Traps |
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