EFFECTIVE FILTER SAVER SOCKSThis value pack comes with 20 filter saver socks to help in your pool maintenance. They can catch oil, hair, bugs, grass, pollen, leaves, pine needles, and any other small debris. A simple but effective way to protect your pool filter. EASY TO INSTALLOur pool skimmer socks are very elastic to fit most types of pool pumps, filter baskets, pool baskets, or strainer baskets. All you need to do is stretch them across your skimmer basket, place the basket back, and replace the pool socks regularly. DURABLE & REUSABLEMade of a thick, ultra-fine nylon fabric, the pool filter socks are high quality, elastic, durable, and can be rinsed and reused as you need. Cost-effective and easy to use. It is suggested that replace the pool skimmer socks every 4 to 8 weeks. Pool Skimmer Socks ValueUsing a pool sock protect the pump impeller and shaft seal from damage / clogging, thereby extending the life of your pool filter / filtration system. Any pool owner who has been through a filtration system repair knows just how valuable that can be. Note: The data are manual measurement, please allow a 1-3cm error, due to the differences between the light and the display, there will be a certain color difference, the specific received in kind prevail.