"Reversible pump can quickly fill or drain a ballast tank with either fresh or sea water. Designed for continuous duty usage and has a built-in thermal overload. Ports: 1/2" NPT and 1" hose.NOT TO BE USED IN POTABLE WATER SYSTEMS."
GPM: 12, Volts: 12
"Everything you are looking for in a ballast pump. Our tough, high density nylon housing and heavy duty water cooled motor give the SHURflo Ballast Pumps unparalleled reliability. Patented anti-airlock feature allows the pump to clear trapped air. All Ballast Series Pumps have a removable motor cartridge for easy cleaning. 6' Tinned wire. CE, Ignition Protected ISO 8846. Port 3/4"."
GPM: 33, Volts: 12