Submersible sump pump designed to evacuate large volumes of water in residential areas, such as basements, laundry rooms, and crawl spaces. Heavy-duty cast iron construction to quickly dissipate heat and prolong pump life. Energy-efficient motor with upper and lower ball bearings. Maximum flow delivery: 16,250 L/h. Maximum discharge height: 6.1 m (20 ft.). Automatic start with vertical switch. 1-1/2 in. outlet. (Adapter, non-return valve, and drain hose sold separately).