FILTER SPONGE CLEANER: The replacement time depends on the frequency of use and the actual situation of the sponges, normally can last less than 1 month. POOL CLEANER: You will receive 6 pieces blue pool filter sponge cartridges, for your daily uses and replacements. REPLACEMENT FILTER: These washable and reusable filter sponges will reduce your pool maintenance costs and achieve better cleaning effect. POOL CLEANER FILTER: Compared to traditional pool pump filter, the new filter sponge is less likely to cause clogging and affect the filtration effect. SUMMER POOL FILTER: The filter sponge adopts sponge, and irregular air holes effectively block the impurities and ensure its filtering effect.