Fits most pool baskets, fits most in-ground and above-ground pool filters such for Hyva, , , Swimquip, etc. Helps keep the filter running efficiently, prevents debris from clogging the filtration system, and reduces the maintenance required for the filtration system With a high emphasis on durability and performance, these socks are made from durable stretch and -fine Material for extra durability. After using the filter socks, it will be easier to clean the pool basket. When it is dirty, please rinse it with a water for tens of seconds, then reuse it or throw it Also great for spas, hot tubs, jetted tubs size: 22 x 13 x 2cm Material: polyester colour: white Package Contents: 50 x filter socks Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.