leaves and pollutants in the swimming pool, so that the swimming pool can be clean. Cost saving: The swimming pool needs regular maintenance, and the filter elements needs to be replaced frequently to maintain cleanliness. The pool filter sponge can be cleaned so that it can be reused, which helps you save a lot of costs. High quality: High quality sponge makes it have excellent ductility and can have stronger filtering capacity. However, the swimming pool contains some pollutants, so you need to take them out for cleaning regularly to reduce the possibility of the filter sponge being corroded and decomposing, so as to extend its service life. Easy to use: You just need to take it out regularly (about a week), clean it and put it back in place. Suitable for: Compatible with for foam and jet pure spa swimming pool, bathroom, fish tank.