SEAFLO 12v Boat Marine Plumbing Electric Bilge Pumps ,also is non-automatic 3500GPH bilge pumps with high efficiency.,heavy duty motors, offer high capacity output. Very powerful pump. Works great and drains pretty fastQuick release strainer for easy maintenance,.Apply for water sampling, high-volume liquid transfer, low-noise continuous workplace; Large aquarium, small swimming pool, water reservoirs, fountains and many other occasions