Description If you are looking for a professional backflow preventer insulation cover, then your research is over here. That's because our product can meet your need. Adopted of premium material, it is practical and durable for long time use. It is not easy to get deformed and bring you much convenience. Features - Color: Black-Material:Oxford cloth,insulation cotton,aluminum film- Size: 52.00X50.00X5.00cm/20.44X19.65X1.97in - The extra layer of insulating aluminum greatly improves freeze resistance, preventing your ductfrom freezing or bursting even in cold winters.- Made of aluminum film, insulation cotton and oxford cloth with good insulation.- Easily adapts to harsh conditions such as sun, snow and rain, providing all-weather protection for your valve.- Faucet cover protects outdoor water pipes and faucets from freezing in winter, effectively helping your life.- Outstanding workmanship, reasonable design, stable and practical, will bring you a good using experience.Packing list: 1 x backflow preventer insulation cover