Zurn
The Rubber and Springs Repair Kit is compatible with the 1/4"-1/2" Model 975XL and 975XL2, and 3/8"-1/2" 975XLST Reduced Pressure Principle Backflow Preventer. Repair Kit components include two Cover O-Rings, one #2 Check Spring, one #1 Check Spring, two Seal Rings, one Relief Valve Spring, one Relief Valve Seal Ring, one Relief Valve Diaphragm, and one Relief Valve Stem O-Ring. The accessories within the kit allow you to speed up repairs, while lowering maintenance costs and extending the product life. The Zurn Wilkins portfolio offers long-lasting protection from backsiphonage and backpressure of contaminated water into the potable water supply.
