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The Zurn Wilkins 350 Repair Kits are compatible with the 3/4", 1", 1-1/4", 2-1/2", 4", 6" and 8" Model 350, 350A, 350XL, 375, 450, and 475 Double Check Backflow Preventer, the 2-1/2", 3", 4", and 6" Model 350DA Double Check Detector Assembly, and the 2-1/2" and 3" Model 375 Reduced Pressure Principle Backflow Preventer. Repair Kit components include everything you need for simple, hassle-free repairs, saving you valuable time and labor costs. Repair Kits are sold as accessories and provide long-lasting protection from backsiphonage and backpressure of contaminated water into potable water supplies.
