The Bestway Flowclear 330 gal / 1,249 L filtration pump is an essential accessory for people who want to keep their pool water clean and hygienic all summer long. The pool filtration pump circulates clean water by pumping it out of the pool through a filter cartridge before discharging it into the pool. The Bestway pump is delivered with two hoses, which are fixed at two different places in the pool. The end of one of the pipes is connected to the inlet of the filtration pump while the other pipe is connected to the outlet. Water is pumped out of the pool via the inlet hose before being cleaned by the filter cartridge and returned to the pool through the outlet hose. The pump operates continuously to provide clear, clean and hygienic water. The 330 gal Bestway Flowclear filtration pump. comes with an installation manual that guides you through the very simple setup process. Recommended for pools of 300-2,200 gal / 1,100-8,300 L.