7FT x 7FT Hot Tub Heat Retention Blanket Blue 400 Micron

7ft x 7ft Thermo Floating Heat Retention Cover for Hot Tubs Blue 400 Micron 3 ways to save yourself some money: 1. This cover reduces the evaporation of water by 95%? 2. It will save you electricity due to heat retention.? 3 ?It protects your spa covers from the chemicals (foaming) in the spa water, extending the life of your top cover. Please be aware that your blanket may have a join as the material is cut from a 2 metre roll.? The Blue 400 micron thermal blanket is very easy to trim into shape with some sharp scissors or stanley knife. The greater the Micron count, the greater the heat retention capacity. Check out ?more ways to save money on your hot tub operating costs in our handy guide.