Material: These filters are made of special high-flow materials for swimming pool filtration, which have the advantages of high efficiency, low pressure and long service life. > Uses: Inflatable pool filters are widely used in household inflatable pools, baby pools, kindergartens and SPA pools. Filter impurities to reduce residual chlorine and provide you with clean and fresh water. Multi-layer design: Folding surface design makes the pressure drop of the high-flow filter element smaller than other filter elements and has a longer service life. The folding design increases the filter area, thickens the filter membrane, and has a strong ability to absorb dirt. When to replace: It is recommended to replace the filter element every 3-6 months for the best experience. The swimming pool filter is a practical choice to replace the old inflatable swimming pool filter, it is economical and efficient, and offers you almost the same service as the original filter at a lower price. The pool filter is small and light. It is easy to carry and carry with the inflatable pool. It doesn't take up too much storage space. It is very suitable for travel or limited storage space.