How it works: The foldable design increases the filter area, thickens the filter membrane and has a strong ability to absorb pollution. Scope of delivery: Filters impurities to reduce the residual chlorine, giving you clean, fresh water. This is a necessary part for the home summer swollen swimming pool, replacing the old one. Replacement swimming pool cleaning filter: The swimming pool filter is a practical choice to replace the old inflated pool filter which is economical and efficient, giving you almost the same service as the original filter with a lower price. Compact size, easy to carry: The pool filter is compact and lightweight , convenient to use with the pool inflated together, does not take up much storage space, perfect for travel or limited storage space. Scope of application: the upgraded version of the swimming pool filter inflatable FD2089 fits all MSPA models, with push and twist bayonet fitting, which is a necessary part for home summer inflated pool, replacing the old one.