1 Inch Backflow Preventer Repair Kit Fit for Watts 0887718 to 800M4-FR Freeze Resistant Pressure Vacuum Breaker Repair Kit - Vaticas Replace 800M4-QT

• Upgrade Kit: Kit fit for 0887718 replace 800M4-QT to 800M4-FR freeze resistant, increasing anti-freeze capability to ensure stable operation of the pipeline system in severe cold weather Anti-Backflow: Backflow conversion kit is uniquely designed to quickly and accurately cut off or open the valve, which can help you prevent foreign matter from entering the water supply system, prevent water from freezing and prevent siphoning Reliable and Durable: Made of high-quality materials, leak-proof, with excellent corrosion resistance and pressure resistance, reducing the frequency of maintenance and replacement, providing you with reliable pipeline protection Simple Installation: Just connect it directly to the existing pipeline, it is simple and fast, reducing installation cost and time, product includes: Engine cover x 1，Engine cover screws x 2，Valve cover x 1，Valve cover O-ring x 1，Exhaust spring x 1，Exhaust float assembly x 1 Applicable Scenarios: Vacuum circuit breaker backflow preventer kits are commonly used in outdoor plumbing and irrigation systems, such as garden hoses, sprinkler systems, and outdoor faucets, to protect water systems from water backflow