Flojet's LF-12 series pumps are available as automatic (pressure switch) pump. This pump is ideal for smaller boats and caravans or anywhere a larger flow output is not required. Its twin chamber double diaphragm design means it can run dry for short periods without damage. Designed for intermittent duty, it has a 4ft (1.2m) lift and has 3/8" (10mm) pump inlet and outlet hose barbs. Delivers 4.3 liters per minute.