【New Eco-Friendly Pool Filter Ball】These fiber filter balls can perfectly replace the traditional pool filter sand, it is lighter, more environmentally friendly, and more effective than traditional sand filters. Moreover, they won’t clog your filters, high-quality filter balls extend the service life of the filter. 1.54 lbs filter ball is equivalent to 50 lbs of filter sand, which can meet your needs and replacement. 【Premium Polyester Fiber Material】Pool sand filter ball is made of 100% eco-friendly polyester fiber. It not only has the advantages of strong adsorption capacity and fast filtration speed, but also has a long service life, can be reused, and low water consumption. It is a brand new swimming pool filtration material. 【Powerful Filtering Effect】These fiber filter balls can filter impurities as low as 5-3 microns, ensuring that your swimming pool remains clean and tidy; The filtration rate is much higher than traditional sand filtration media, giving you more time to enjoy the swimming pool！ 【Machine Washable & Reusable】We provide a high-quality polyester fiber mesh bag for these filter balls, which you can place fliter ball in the fiber mesh bag and use a washing machine for cleaning. These fiber filter balls will make your pool cleaning effortless！ 【Zero-Risk Purchase】We will provide you with a pleasant shopping experience and take responsibility for our products. If for any reason you aren’t happy with your purchase, please contact us, we will quickly provide you with a satisfactory solution！