Arctic Armor’s 8-Year In-Ground Pool Winter Covers have a rugged, polyethylene scrim designed to withstand winter's worst. UV-protected, our winter covers are resistant to the deterioration caused by damaging UV rays. A black underside inhibits algae growth and heat-sealed seams ensure a crystal-clear pool in the spring. The generous, 5-foot overlap ensures a proper fit and prevents excessive wear and tear. Heavy-duty loops are placed every four feet to secure water tubes and grommets on all four corners offer extra security. Backed by an 8-year warranty, our durable winter covers will provide years of winter protection.