Our backflow insulation bag is specifically designed for pressure vacuum breakers, ensuring a perfect fit. Protect your pressure vacuum breaker from heavy snow and intense sunlight. Made with 1 layer of waterproof heavy-duty Oxford fabric, 2 layers of cotton insulation, and 2 layers of aluminum foil for superior protection. Shield your backflow system from freezing and cracking in harsh weather conditions like snow, rain, wind, and sun. Avoid costly annual valve replacements and repair expenses. Simply place the cover over the pipe and close it with the buckle. The loops can also be locked with a chain to prevent theft and enhance security. Double stitching ensures maximum security, waterproofing, and heat insulation. Protect your backflow equipment/irrigation system/lawn sprinkler system from freezing or sun exposure. Size: 33 x 36 cm Material: Oxford cloth + cotton + aluminum foil Color: Beige Package Contents: 1 x Valve Freeze Protection Cover Protect your backflow preventer from the elements and save on costly repairs!