This is a dedicated filter cartridge to remove debris from the INTEX old model 02, 12R, 56637 circulation clean pumps. The filter has the effect of removing hair, lint, and fine floating objects in the pool, so please replace it for hygiene management after approximately 24 hours of pump. It can filter approximately 90,000 liters of water in 24 hours. In addition, it does not have the effect of removing bikins, bacteria and turbidity. Replacing the filter is easy to open the top lid of the clean pump. Also, we do not recommend reusing it after washing it from hygiene management. How to Use: Drive for more than 2 hours before using the pool. Stop the pump during swimming for safety. Filters fine impurities in the water. Replace every 24 hours or if dirt becomes noticeable.