【Measure Before You Buy】 For example, the exterior dimensions of 17 inches wide and 20.5 inches high are suitable for most return systems up to 14 inches wide (considering the thickness of the return valve, it is best to leave at least 3 inches for best fit). Frost Protection】The extra layer of insulated aluminum greatly improves freeze protection, preventing your piping system from freezing or bursting even in cold winters, saving you from costly repairs. 【Durable Quality】Made of aluminum foil, PP cotton and waterproof 600D Oxford cloth, with a good insulation and waterproof performance. Easily adapt to harsh conditions such as sun, snow and rain, providing all-weather protection for your valves. [Firmness] Widened Velcro closure provides a strong bond to hold your waterproof case. Even in strong winds, you don’t have to worry about it blowing away. 【Functional and practical】2 304 stainless steel cable rings, designed for the locking device, can make your anti-theft case.< /p>
