General description Pool Filter Balls are an effective solution for cleaning and purifying water in swimming pools. Made from high-strength polyester, these lightweight filter balls enhance the filtration process, ensuring a cleaner and clearer pool. Technical specifications Weight: 500g Material: Polyester Color: White Installation Open the filter container of the sand filter system. Remove the existing filter material (if present) and clean the filter container. Fill the filter container with the filter balls. Close the filter container. Turn on the machine to start the filtration process. Other information Package Contents: 1 x Pool Filter Ball Set Note: Light reflection and different displays may cause the color of the item in the picture to differ slightly from the actual product. The measurement allowed error is +/- 1-3cm.