• Hot Tub Spa Water Thermal Insulation: Solar bubbles hot tub spa covers can float on water to keep the water temperature during heating or not use. Don't need to add or change water even passed a few day for last use because we can reduce water evaporation by 95% and keep dirt away. Reducing the time you need to heat the water in the next time
• 16 MIL Thickness: Most of the hot tub spa blankers on the market are 8-12 MIL thick. Our solar pool covers are 16 MIL thick, so our hot tub spa covers can keep the water warm longer. The bubbles will not crack or fall off, and the square solar cover can be used for a long time
• Bubble-side Down: When using, you need to put the bubble side of the solar blanket for hot tubs close to the water surface, with the smooth side facing up, which can also play a role in preventing dust, reducing condensation and freezing on the edge
• Perfect for Inground or Above Ground Hot Tub or Swimming Pools: Perfect for almost kinds of inflatable outdoor hot tub spa, bath tub, massage pool, swimming pool on market
• Trim to Fit: Our thermal solar blanket cover fits most 1-4 people hot tubs. If your tub has more irregular shapes, you can put the cover over the hot tub first, then make a mark and cut along the mark
• Make Sure Accurately Measure & Choose Right Size: Please be sure to accurately measure the inner diameter of your hot tub and choose the right size specifications