20 Pack Pool Skimmer Socks (Not Include Skimmer Basket), Our Pool Skimmer Socks Can Be Used With Most Skimmer Baskets 【Mat】The pool skimmer socks are made of high quality nylon fabric. and have good elasticity. stretches easily and is enough to cover the skimmer basket, suitable for use in swimming pools. 【Easy to Use】Installed in seconds, just slide the sock onto the basket and you're ready to go. Dirt collect water. 【Extend the Life of Your Pool Filter System】Pool socks protect the pump impeller and shaft seal from damage and clogging, extending the life of your pool filter and filter system. 【Please do not use the product while dissolving a tablet. 【Chlorine in your basket】 Otherwise it will be eroded. And you need to replace or clean the socks every 4 days. 6 weeks if they are too dirty to be cleaned. Water will not flow.