Rockford RGI-350 Gravity Grease Interceptor – 350 Gallon, 1,764 lb, 200 GPM, H20 Rated
Rockford RGI-350 — Gravity Grease Interceptor, 350 Gallon / 1,764 lb / 200 GPM
The Rockford Separators RGI-350 is a large-capacity, all-welded steel gravity grease interceptor engineered for high-volume commercial food service operations that have outgrown under-sink PDI traps. With a 350-gallon liquid holding volume, 1,764 lb greasy sludge capacity, and a cover rated for H20 heavy truck traffic, the RGI-350 is built for flush-with-grade installation in parking lots, loading docks, and service drives where service vehicles regularly pass overhead. Handles up to 200 GPM intermittent flow from multiple kitchen fixtures simultaneously. All-welded steel body with bituminous exterior coating. Built to IAPMO/ANSI Z1001-2014 construction standard. Custom-built to order in Rockford, IL — non-returnable.
Key Features of the Rockford RGI-350
Custom-Built to Order — Non-Returnable: The RGI-350 is fabricated to order. Confirm capacity, manway height, pipe configuration, and local plumbing code requirements with your engineer or plumbing inspector before placing your order. Returns are not accepted on custom units.
RGI-350 Specifications
| Model | RGI-350 |
|---|---|
| Series | RGI — Gravity Grease Interceptor |
| Liquid Holding Capacity | 350 Gallons |
| Greasy Sludge Capacity | 1,764 lb |
| Flow Rate (Intermittent) | 200 GPM |
| Inlet / Outlet Connection | 4" Threaded |
| Vent Connection | 3" |
| Manway | 6" Tall (Standard — Custom Height Available) |
| Width (E) | 42" |
| Length (F) | 48" |
| Height (G) | 54" |
| Top to Center of Outlet (A) | 18" |
| Top to Center of Inlet (B) | 16" |
| Bottom to Center of Outlet (C) | 42" |
| Bottom to Center of Inlet (D) | 44" |
| Approx. Ship Weight | 1,200 lb |
| Body Construction | All-Welded Steel, Bituminous Coating (Exterior) |
| Cover | 3/8" Nonskid Diamond Treadplate, Stainless Flat-Head Screws |
| Gasket | Heavy-Duty Leak-Proof |
| Load Rating | H20 — Heavy Truck Traffic |
| Lifting | 4 Lifting Lugs Supplied |
| Construction Standard | IAPMO/ANSI Z1001-2014 |
| Installation | Flush-with-Grade or Above-Ground |
| Order Notes | Custom-Built to Order — Non-Returnable |
| Manufacturer | Rockford Separators, Rockford, IL |
Frequently Asked Questions
What is a gravity grease interceptor and how does it differ from an RP-series trap?
A gravity grease interceptor is a large tank that separates grease from wastewater using extended dwell time and gravity — grease floats, solids sink, and clarified water exits to the sanitary sewer. The RP Series are small PDI-rated under-sink traps sized in GPM and pounds of grease. The RGI Series are large-format tanks rated in gallons of liquid holding, sized to serve an entire kitchen or multiple facilities.
What is the greasy sludge capacity of the RGI-350?
The RGI-350 holds 1,764 lb of greasy sludge within its 350-gallon liquid holding volume. This capacity far exceeds under-sink RP-series traps and dramatically extends pumpout intervals for high-volume commercial kitchens.
Can the RGI-350 be installed in heavy truck traffic areas?
Yes. The 3/8" nonskid diamond treadplate cover is H20 load rated — the standard for commercial and highway truck loads. The unit is suitable for flush-with-grade installation in parking lots, loading docks, and service drives where trucks routinely cross the cover.
Is the RGI-350 returnable?
No. The RGI-350 is custom-built to order and is non-returnable. Verify capacity, manway height, pipe configuration, and local code requirements with your engineer or plumbing inspector before placing your order.
Can the manway height be customized?
Yes. The standard unit ships with a 6" manway. If the unit will be buried deeper or installed under a paved overlay, specify the required manway height at time of order to accommodate your inlet invert requirements.
What construction standard does the RGI-350 meet?
The RGI-350 is built to the IAPMO/ANSI Z1001-2014 construction standard for fabricated gravity grease interceptors — the nationally recognized standard referenced in commercial plumbing codes for large-format interceptor sizing and construction.
| Brand | Rockford Seperators|Grease Traps |
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| SKU | RGI-350 |
| Brand | Rockford Seperators|Grease Traps |
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