Dakota Fields Cartridge Filter Pump. this comes with a filter cartridge, hoses and fittings, comes ready. 4.16 yrd (3.8 m) /h-Dakota Fields recommended for round pool with a diameter of 5.19 yrd (4.75 m) or For oval Pools 5.49 x 3.05 m Hose Diameter 32 mm Filter Cartridge Type A. Use a Cartridge Filter Pumpensures high quality and easy thorough Filtration assembly-easy to clean-Low-maintenance. Filter media cleaning time: every 2 weeks. Hose fittings characteristics: 32mm diameter. One hydro aeration technology inlet fitting included