Durable, double stitched hems and polyester material with weather-resistant coating Drawstring and hook-and-loop strap for a secure fit Prevents drafts and heat loss for improved comfort and energy savings Fits downdraft evaporative coolers only. Please check your cooler size before purchasing. Dimensions: 36"L x 36"W x 40"H 3 Year Limited Warranty The Evaporative Cooler Cover is the solution to protecting your home during the cold winter months. This cover protects your evaporative cooler from dust, pollen, extreme temperatures, and all types of weather. It also prevents cold air from entering your home and warm air from escaping. Made with heavy-duty polyester material using double-stitched hems, this cover is specifically designed to fit downdraft evaporative coolers. Simply tighten the drawstring on the bottom and hook-and-loop strap for a secure fit. For additional security, use our locking strap to hold the cover tightly in place (sold separately). Please check your cooler size before purchasing. Dimensions: 36"L x 36"W x 40"H