General description This 30-Pack of Reusable Ultra-Fine Pool Debris Catchers is designed to simplify your pool maintenance. These filter saver socks effectively catch oil, hair, bugs, grass, pollen, leaves, pine needles, and other small debris, providing a simple yet effective way to protect your pool filter. Technical specifications Color: White Material: Thick, ultra-fine nylon fabric Size: Approximately 20.5 x 11.5 cm Package Contents: 30 filter socks Measurement allowed error: +/- 1-3 cm Installation These socks are very elastic and fit most types of pool pumps, filter baskets, pool baskets, or strainer baskets. To install, stretch the socks across your skimmer basket, place the basket back, and replace the pool socks regularly. Usage Rinse and reuse the pool filter socks as needed. It is suggested to replace the socks every 4 to 8 weeks for optimal performance. Other information Note: Light and different displays may cause the color of the item in the picture to differ slightly