Luphy 4.18 lb (1900G) Upgraded High-Efficiency Blue Pool Filter Balls — Sand Substitute for All Sand Filter Systems

Made from durable polyester fibers, these reusable filter balls replace sand in sand filter systems and are simple to maintain — just toss them in the washing machine during routine cleaning and they return like new. One 4.18 lb pack of filter balls provides filtration performance equivalent to 200 lbs of filter sand, while being much easier to handle and to fill into the filter tank. The fibers trap fine particles and debris quickly, improving water clarity and cutting filter run times, which reduces energy use. They stand up to backwashing and rinsing, extend the life of your filtration equipment, and significantly reduce the frequency and effort required for filter maintenance. Installation is straightforward: remove the sand and add these fiber balls — no more sand washing into the pool. Suitable for all sand filter systems and versatile enough for use in pools, aquariums, and fish tanks, these polysphere pool filtration balls offer high adsorption capacity to keep water cleaner for longer. A practical, time-saving replacement for traditional filter sand or filter glass.