External gear pumps with 12 and 24 V DC motors wit IP55 protection, on/off switch, fuse and 2 m cable with crocodile clamps. Pump can work in interment duty cycles of 30 minutes and has built in by-pass valve. Inlet connection: 3/4" BSP (F). Outlet connection: 1/2" BSP (F). Maximum suction lift: 2,5 m.