Rockford RP-35-LO Low Profile Grease Trap - 70 lb, 35 GPM, 4" No-Hub Inlet
Rockford RP-35-LO Low Profile Grease Trap — 35 GPM, 70 lb Capacity
The Rockford RP-35-LO is an all-welded steel grease interceptor built for kitchens where headroom under the sink is tight. At just 13.25″ tall, this low-profile (“Low Boy”) design slides into shallow cabinets and recessed pits that a standard interceptor won’t fit, while still delivering a 35 GPM rated flow and 70 lb of grease capacity. Manufactured to PDI G-101 standards by Rockford Separators, it’s a dependable, code-ready choice for restaurants, bars, and commercial kitchens that need reliable FOG (fats, oils & grease) separation without a deep installation.
Key Features of the RP-35-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 13.25″ tall — ideal for shallow under-sink cabinets and recessed installations where a full-height unit won’t clear.
4″ No-Hub Connections
4.00″ no-hub inlet and outlet with an integral flow control device keep flow at the rated 35 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 35 GPM / 70 lb RP-35-LO suits small to mid-size kitchens; if your fixture flow is higher, step up to a larger RP-series model.
Ideal Applications
The compact footprint and walk-on cover make the RP-35-LO a fit anywhere a low-clearance, code-compliant grease trap is required.
RP-35-LO Specifications
| Manufacturer | Rockford Separators |
|---|---|
| Model | RP-35-LO (Low Profile) |
| Rated Flow | 35 GPM intermittent flow |
| Grease Capacity | 70 lb |
| Liquid Holding Capacity | Approx. 20 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) | 39″ |
| Width (front to back) | 23″ |
| Height (floor to top) | 13.25″ |
| Bottom to Center of Inlet | 8.5″ |
| Approx. Weight | 165 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-35-LO mean?
“LO” stands for Low Profile (sometimes called “Low Boy”). The unit is only 13.25″ tall, so it fits under sinks and in shallow floor recesses where a standard-height interceptor would not clear.
What flow rate and grease capacity does it provide?
The RP-35-LO is rated for 35 GPM intermittent flow and holds up to 70 lb of grease, with roughly 20 gallons of liquid holding capacity — a good match for small to mid-size commercial kitchens.
Is the RP-35-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.
What are the inlet and outlet connections?
The interceptor uses 4.00″ no-hub inlet and outlet connections and includes an integral flow control device to maintain the rated flow for proper separation.
Can it be installed flush with the floor?
Yes. The RP-35-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-35-LO |
| Brand | Rockford Seperators|Grease Traps |
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