Bestway 330gal Filter Pump cleans dirt and debris from an above ground pool so that water is clean, clear and hygienic to swim in. The filter pump is compatible with 8ft to 12ft Fast Set Pools, 10ft to 12ft Steel Frame Pools and Splash Frame Pools in the Bestway collection. It pumps water out of a pool and through a filter cartridge, trapping grime and sanitizing dirty water. The water is then pumped back into the pool to repeat its cycle. The filter pump comes with two hoses which are plugged into different access points on the swimming pool and connected to an inlet or outlet on the filter pump. Clamps are used to secure the hoses and prevent them coming loose. Water is pumped out through the inlet hose, cleaned by the filter cartridge and pumped back into the pool via the outlet hose at a rate of 330gal (1,249L) per hour. The hoses, clamps and 3.1in x 3.5in filter cartridge are included with the Bestway 330gal Filter Pump. It also comes with an installation manual to guide you through the set-up process. Check compatibility with your pool if unsure the 330gal filter is suitable.