[Upgrade Design]:Our inflatable hot tub pump cover is designed with transparent PVC window on the top and zipper opening design,no need to remove the cover when using, front Nylon Sticker opening design, installation which lets you do not need to remove the hoses,simple and convenient. [Hot tub insulated pump cover]:Size is 16.9inch D x 14.96inch W x 21.2inch H(43x38x54cm).Suitable for most hot tub spa heater pump on market.Please note that:Cover only. [ Material]:Made of top quality 600D polyester canvas complex with waterproof backing.Maximum resistance against rain, sun, and outside elements.Extend the service life of the hot tub spa heater pum. [Comprehensive Protection]:2 buckles on the side of the cover and 1 elastic hem cord at bottom can make the cover fix closely with the spa heating pump for esistant the bad weather and not be blown away by the wind.All-Weather protection keeps your spa heater pump clean, dry, and looking like new. Colour:Gray Material:polyester canvas+pvc Package Contents: 1 x Hot Tub Spa Heater Pump Cover Only the above package content,Attention: heater not included, only protective cover. 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.