Made from durable elastic and ultrafine nylon mesh, these pool skimmer socks acts as a net to attract and trap leaves, grass, hair, scum, oil, pine needles, pollen, bugs, and other debris, preventing them from clogging your pool's filtration system (also makes a great algae sock for pool use). Pool filters savers skimmer socks protect the pump impeller and shaft seal from damage / clogging, thereby extending the life of your pool filter pump, pool filter cartridge and overall filtration system. Skimmer sock pool filter savers make cleaning skimmer pool baskets easier and less messy. Our pool socks skimmers fit nearly any shape pool filter basket / pool pump basket / pool strainer basket, including baskets produced by Hayward, Pentair and Swimquip. Value pack – 10 pool skimmer filters per pack. When soiled, clean filter savers skimmer socks with garden hose and reuse or throw away (if heavily soiled). Replace with new sock every 4-8 weeks. Do not use while dissolving a chlorine tablet in your basket – it will erode the sock.