[Upgrade Design]: Our inflatable hot tub pump cover features a transparent PVC window on the top and a zipper opening design, allowing use without removing the cover. The front nylon sticker opening enables installation without disconnecting hoses, offering simple and convenient operation. [Hot Tub Insulated Pump Cover]: Dimensions are 16.9 inches D x 14.96 inches W x 21.2 inches H (43 x 38 x 54 cm). Fits most hot tub spa heater pumps on the market. Note: Cover only. [Material]: Made of high-quality 600D polyester canvas with waterproof backing. Provides maximum resistance against rain, sun, and outdoor elements, helping extend the service life of the hot tub spa heater pump. [Comprehensive Protection]: Two side buckles and one elastic hem cord at the bottom ensure a secure fit, protecting the spa heating pump from harsh weather and preventing it from being blown away by wind. All-weather protection keeps your spa heater pump clean, dry, and looking like new. Color: Gray Material: Polyester canvas + PVC Package Contents: 1 x Hot Tub Spa Heater Pump Cover Note: Light reflection and different displays may cause slight color variations between the image and the actual item. Measurement may vary by +/- 1-3 cm.