Midwest Canvas 30' Round Space Age Swimming Pool Solar Heater Cover Blanket

This Cover: 12 Mil Thickness 30' Round 10 Year Limited Warranty / 2 Year Full These Covers: Durable resin material protects cover from rips and tears Blocks unwanted dirt and debris from entering your pool Thousands of air bubbles collect the sun's heat and transfer it to your water Raises pool temperature by up to 15 degrees Prevents up to 95% of pool water evaporation, retaining more heat in your pool Bubbles on the cover face-down into the water