(800) 823-4937
sales@northernhydraulics.netRockford Separators Parts & Cross-Reference
- Proud Rockford Distributor
- Serving Customers Since 1963
- Free US Shipping on Most Orders
Rockford Separators, founded in 1967 in Rockford, Illinois, builds industrial grease and oil separators, interceptors, trench drains, and catch basins for waste management and environmental protection. The line spans G, OS, OST, ROI, RSP-G, RP, and RSTD series in capacities from 1 to 50,000 gallons. Northern Hydraulics supplies and cross-references Rockford Separators parts, matching obsolete and current models by series…
Rockford Separators is an American manufacturer founded in 1967 and based in Rockford, Illinois. The company builds industrial separators, interceptors, trench drains, and drainage systems for waste management and environmental protection across commercial and industrial sites. Rockford Separators is active and, in April 2024, acquired PS International to expand its oil-water separation work. Northern Hydraulics supplies and cross-references Rockford Separators products, including obsolete and superseded models, with replacement and equivalent parts sourced to spec.
Rockford Separators Product Lines & Series
Rockford’s catalog spans grease separators (G, G-C, GF, RTO, and GIS series), oil separators (OS, OST, GOST, ROI, ST, RHS, and OSL series), and lint separators (RLSW and the light- and heavy-duty RLS series). Sand and sediment separation runs through the RCB and GSS series.
On the interceptor side, grease interceptors cover the RSP-G, RP, RP-SS, RPD, RPDC, R-Poly, RGI, RPS, and RSI families, while oil interception runs through the RSP-O series. Drainage hardware includes RSTD stainless steel trench drains, RSD and SD garage drains, and RSSTB and RCB catch basins. Rockford fabricates standard and custom sizes from 1 gallon up to 50,000 gallons, so a model identified by capacity or fitting layout can be matched even when the original part number is no longer cataloged.
Cross-Referencing Rockford Separators Parts
If you have a Rockford Separators unit in service and need a like-for-like replacement, work from the series prefix and capacity rather than the casting alone. An OS, OST, or ROI oil separator, a G-series grease separator, an RSP-G or RP grease interceptor, or an RSTD trench drain can each be matched to a current equivalent by capacity, inlet and outlet configuration, baffle arrangement, and material (steel, stainless, or R-Poly). For discontinued or relabeled models, we identify the closest active Rockford series or a functional equivalent built to the same flow and capacity rating.
Send your part number, nameplate tag data, or a photo of the unit and we will return a cross-reference and quote: request a Rockford Separators cross-reference quote.
Rockford Separators – Frequently Asked Questions
Need help choosing Rockford parts?
Talk to a hydraulics specialist or send a quote request — we respond the same business day. (800) 823-4937 sales@northernhydraulics.net