Perfect for Filter System Protection: Our pool filter skimmer can protect the pump impeller and shaft seal from damage or clogging and extend the life of the pool filter system. You don't have to worry about these impurities destroying your filtration system Wide Compatibility: Skimmer filter socks are suitable for almost all types of pool filters, baskets or skimmers (including the pool skimmer socks for Hayward, Pentair, Swimquip and etc) Install in seconds, just slip the sock over the basket and it's ready to detect water dirt 【Great Value Pack】30 pool skimmer socks. 12 x 21.5cm. The precision of the filter is 1 micron. The socks have good elasticity to cover the skimmer basket. Change new socks every 4-8 weeks. The right choice for you is to check the sock every week; If there is too much waste, it will overflow and pollute the swimming pools. Please do not use the product while dissolving a chlorine tablet in your basket. Otherwise, the pool skimmer will be eroded socks Free your hands from manual cleaning: With our pool skimmer socks, you only need to replace worn-out socks regularly. No more courier work. Install in seconds, just slip the pool skimmer socks over the basket and it's ready for catching dirt from the water. Suitable for use on above ground and underground swimming pools Good pool cleaning helper: The pool socks can filter out leaves, grass, hair, oil, pine needles, pollen and other residues. Install in seconds, just slip the sock over the basket and it's ready for catching dirt from water. Effectively tighten and remove dirt. Pool Skimmer Socks Keep your swimming pool clean and save cost Note: The data is all manual measurement, please allow 1 - 3cm error, due to the difference of light and d display, there will be a certain color difference, depending on the physical object received. Note: The data is all manual measurement, please allow 1 - 3cm error, due to the difference in light and display, there will be a certain color difference, depending on the physical object received.