6" Model 350/350A/450/375/475 Main and Bypass Rubber Repair Kit

The Main and Bypass Rubber Repair Kit is compatible with the 6” Models 350, 350A, 450, 375, and 475 Backflow Preventers. Repair Kit components conveniently include two Check O-Rings, eight Poppet Bolt O-Rings, two Seal Rings, and one Bypass Rubber Repair Kit. Repair Kits are sold as accessories for quick and simple repair needs, providing long-lasting protection from unwanted leaks and costly, unauthorized water use in fire protection applications.