Features 1. Insulation & Waterproof: Our insulation pouch is made of heavy duty material 600 Oxford Fabric and aluminum foil, triple stitching for max security, has both waterproof and insulation effect. It can also be used in all construction and commercial building for maximum protection. 2. Easy to Use: Cover the winter return pipe on the pipe, and the bottom is made of strong velcros to prevent it from being blown away by the wind. The two built-in holes at the bottom of the insulating cover can provide higher security. 3. Avoid High Repair Costs: Our insulated pipe cover protects your backflow pipe systems from freezing, bursting and blowouts due to the severe weather conditions like snow, rain, wind and sun exposure heating. Avoid expensive cost for valve replacing and repair every year. 4. A Clean Natural Appearance: The sand color will match the color of most of the houses and will blends in with the limestone wall. Can be used as a water valve cover, irrigation covers, well pipe cover, or sprinkler valve cover. 5. Stay Sturdy: Put the cover on your pipes and close it with the strong Velcro Strips. No more tools and screws. The built-in holes at the bottom of our insulated well cover offers more security from stolen, simply secure your backflow preventer irrigation cover with wire locks or plastic security ties. Specification Material: Aluminum foil, PP cotton, Oxford cloth Color: White Size: 43 x 52 cm, 62 x 63 cm, 63 x 77 cm Weight: 180 g, 300 g, 350 g Package Include: 1 Backflow Insulation Cover