The Hot Tub Bubble Cover Saves Energy and protects your hot tub cover from chemical and ozonator damage! This solar spa cover or solar hot tub cover retains heat to reduce evaporation, and protects from chemicals being lost. Improve the longevity of your spa and prevent debris from entering your hot tub by using the hot tub bubble cover. Easy to use and store, this hot tub cover will be a great investment for your spa. This affordable upgrade is available for your hot tub online at The Cover Guy. Harness the natural power of the sun and save on heating costs today!