NC Brands SmartPool 4 Pack - Solar Pill Liquid Pool Solar Cover 90123APL

With the Solar Pill, you won't have to buy a solar pool cover! The Solar Pill inhibits pool water heat loss 24 hours a day. It works at approximately 60% the effectiveness of a conventional plastic solar blanket, at a fraction of the cost and effort. How does it work? Simply place the Solar Pill in the pool skimmer basket and enjoy warmer pool water for up to 30 days. One Solar Pill treats up to 12,000 gallons for up to 30 days. The Solar Pill will be empty after 1-2 days in the skimmer. Once empty, you can remove the Solar Pill and enjoy its effects for up to 30 days.