GLI Pool Products HyperLite 20-1632RE-HYP-BLU-K-AC 16' x 32' Blue Rectangle Safety Cover. If you open your pool in the late spring, have large amounts of leaves and debris in the yard and require the strongest and lightest solid safety cover available - this is the cover for you! Contains improved strength and puncture resistance - the ultimate in durability, which is able to withstand puncturing from falling tree branches, deer hooves & the claws (etc.) from other animals. Provides 100% Sunlight Blockage, which means there will be NO spring time algae growth in your pool.