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Veloci Performance O-Rings will fit in any 1/4", 3/8", and 1/2" coupler in the U.S. Market. Veloci sells well over 100,000 o-rings per year because they are commonly lost at the worst of times. From amateurs to contract cleaners, everybody blows out o-rings, the difference is the pro's always have a few spare o-rings on hand. Don’t get caught without a few extra o-rings on the job. A small investment makes a big difference in maintaining PSI, GPM, and safety. Types of O-Rings: Buna Nitrile is a common and inexpensive compound used in o-rings found in all Veloci Performance brass couplers and should only be used in cold water applications (Maximum 250º F). FKM (fluoroelastomer) is a more expensive and durable compound meant for Hot Water (Maximum 450º F) applications and performs well with chemical applications. Use the FKM o-rings for replacement on stainless steel fittings. EDPM is a more expensive and durable compound that performs well with hot water but exceptionally with chemical applications. All Veloci Performance Stainless Steel Couplers have EDPM o-rings, although we do not sell replacements; instead, replace with FKM.
Also known as: O-RING Fkm 3/8 QC Coupler (Pack 25).
Part number: 39.0030. Questions about fit or sizing? Call (888) 714-1410.