Filter ball is the best filter material for swimming pool water treatment. The filter ball is made of 100% polyester fiber environmental protection material. It has the advantages of light weight, good elasticity, good filtering effect, easy to use, no sand leakage in the tank, less backwashing and energy saving. Filter ball is a substitute of sand. The filter ball of 700g can replace 25kg of sand. The filtering effect is 5 times of sand, and the filtering precision can reach 3 microns.  

Filter ball is the best filter material for water treatment of swimming pool, and is an alternative to sand. It is suitable for all sand / glass filters. It is widely used in water treatment of swimming pool, aquarium, water park, etc. Secondly, it is also used in industrial water treatment, rainwater treatment, drinking water treatment, etc.