Our reflow insulation bag is specially designed for pressure vacuum breaker, it is a perfect match with pressure vacuum breaker. Protect your pressure vacuum circuit breaker from heavy snow and harsh sunlight. Made of 1 layer of waterproof heavy duty Oxford cloth, 2 layers of cotton insulation, 2 layers of aluminum foil. Protect your return piping system from freezing, bursting in harsh weather conditions such as snow, rain, wind and sun heat. Avoid expensive annual valve replacement and repair costs. Place the cover on the pipe and close it with the Buckle. The grommets can also be locked with a chain to prevent theft and increase security Double stitching ensures maximum safety, waterproof and thermal insulation. Protect backflow equipment/irrigation system/lawn sprinkler system from freezing or sun exposure. size: 53 x 41cm Material: Oxford cloth+cotton+aluminum foil colour: beige Package Contents: 1 x Valve Freeze Cover Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.