Inflatable Hot Tub Cover Round, One Size Fits All Energy Saving Heat Insulator & Protector, Insulated Thermal Hot Tub Replacement Cover Accessories. Will it fit my circular tub? One size fits all – inflate up to the size you need. The PERFECT Inflatable Hot Tub Accessory. Replacement compatible with Coleman Saluspa & Intex Cover. Say GOODBYE to sky high running cost by reducing heat loss, keeping your water warmer for longer. Prevents debris falling into your tub & reduces evaporation, leaves you with more time to enjoy your little home sanctuary. At our #1 priority is your happiness. If you’re not happy, neither are we. We stand by our product 100%, so if you’re not satisfied we will do whatever it takes to change this.