General description The 200 g reusable pool filter balls are an eco-friendly alternative to traditional pool filter sand, designed specifically for YMYNY pool filter systems. Made from lightweight polyester, these filter balls offer excellent durability and water permeability, ensuring effective filtration of impurities in your pool water. Technical specifications Weight: 200 g Material: Polyester Usage Effectively filters out impurities and microscopic suspended matter in pool water. Suitable for use in swimming pools, aquariums, filter pumps, and fish tanks. Requires less backwashing compared to traditional sand filters.