Zurn Wilkins
The Rubber Repair Kit is compatible with the 3/4"-1" 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 backsiphonage and backpressure of contaminated water into the potable water supply.