Features 1、Polyester Canvas Construction: Crafted from 600D polyester canvas composite material, this heater pump cover is waterproof on the backside, providing maximum resistance against rain, sunlight to extend the lifespan of your hot tub SPA heater. 2、Transparent PVC Window: Featuring a top design with a transparent PVC window, you can easily operate without the need to lift the cover, offering better prevention for your heating pump during spa sessions, enhancing your spa care comfort. 3、Zipper and Hook and Loop Opening Design: Designed with zipper and hook and loop openings, installation is easy and convenient without the need to remove hoses, providing simple usability. 4、Secure Fastening: Equipped with 3 nylon buckle straps on the sides, the cover securely fastens to the heater pump, preventing it from being blown away by harsh weather conditions. Ensure your heater pump stays clean and dry with all weather guard. 5、Universal Fit: Sized at 16.9x14.9x21.2 inches, this cover fits most hot tubs and SPA heater pumps on the market. Please check the size of your heater pump before purchasing to ensure compatibility with the cover. (Note: Cover only, does not include the spa heating pump.) Specifications Item Type: Heater Pump Cover Material: Polyester Canvas, PVC Weight: Approx. 540.00g/19.05oz Product Size: Approx. 42.9x37.8x53.8cm//16.9x14.9x21.2in Package List 1 x Heater Pump Cover