The Rubber Repair Kit is compatible with the 3/4 in-1 in Model 975XL and 975XL2 Reduced Pressure Principle Backflow Preventers. Repair Kit components include two Seal Rings, two Cover O-Rings, one Relief Valve Seal Ring, one Relief Valve Diaphragm, and one Relief Valve Stem O-Ring. Repair Kits are sold as accessories for quick and simple repair needs, providing long-lasting protection from back siphonage and backpressure of contaminated water into the potable water supply.
Zurn® Repair Kit, Lead Free, For Use with: Wilkins Model 975XL2 and 975XL Backflow Preventer, Rubber, Domestic