Save Costly Pipe Repairs: Every winter, many people complain that despite the time they spend wrapping towels and tape around their pipes, the pipes break and leak, and even cost a lot of money to repair. But with this backflow insulation cover, you don't have to spend so much money again. Don’t wait before it’s too late Cover Size: Our backflow valve cover insulated is 36*24 inches. As what we provide is the outer dimension of the product, and the product itself has a certain thickness. So please measure your pipe size and reserve about 3 inches or more of extra space before purchase Thickest Materials: Our sprinkler backflow cover for winter has fairly thick material! The sprinkler cover for the outside is made of 7 layers of material. The outer layer is 600D Oxford Fabric with a water-repellent effect, the inner layer is two layers of non-woven fabric, two layers of PP cotton with thermal insulation, a layer of aluminum foil with a thermal insulation effect, and a layer of waterproof lining. They help keep your pipes warm and from bursting during freeze Insulation Aluminum Foil: Aluminum foil is made of electrolytic aluminum or aluminum alloy sheet with a purity of 99.3% to 99.9%. Aluminum foil is a recognized material that isolates packaging items from the outside world, whether it is water vapor or air, etc, which greatly enhances the antifreeze performance of the backflow insulation cover Anti-wind and Anti-theft: The bottom of the backflow cover is Velcro, which keeps the cover sealed closed to prevent cold wind from entering. There are also two metal loops on the Velcro, you can use our cable ties or use your own chain or small lock to fasten it to prevent it from being easily stolen by others backflow cover backflow preventer cover insulated backflow valve cover insulated backflow insulation cover sprinkler backflow cover for winter backflow covers for winter sprinkler covers for outside pipe insulation cover sprinkler covers backflow insulation cover sprinkler backflow cover for winter backflow covers for winter sprinkler covers for outside pipe insulation cover sprinkler covers sprinkler covers for outside yard sprinkler covers xl backflow cover backflow preventer insulation cover winterized well water tank insulation covers winterize pipe cover winter water pipe cover winter water cover winter thermal sprinkler cover winter sprinkler cover winter pipe insulation, well head cover, winter pipe insulation winter pipe freeze protection winter pipe covers outdoor winter pipe covers winter pipe cover winter outdoor pipe cover winter irrigation insulating cover winter insulated cover pouch backflow winter hose cover insulated winter exposed pipe cover winter covers for outdoor pipes winter covers winter cover for pipes winter cover for backflows for dinner winter backflow insulation cover winter backflow cover outdoor winter backflow cover wilkins backflow preventer cover white pipe insulation wellhead insulation cover well tank insulation cover well pump insulation cover well pump insulation well pump insulated cover well pump cover for winter well pump cover well pipe insulation well pipe covers for outside well insulation cover well insulation well insulated cover well head insulation cover well head insulated cover well head cover well covers for yard extra large well covers for water wells well cover insulation well cover for winter well cover weather covers for backflow preventers waterproof outdoor insulation sprinkler backflow valve rock backflow preventer cover waterproof backflow preventer insulation cover winter small water well tank covers insulated water well pump covers insulated water well pump covers water well pressure tank covers insulated