Single diaphragm pump engineered to manage black wastewater and also ordinary shower or sink drain water or bilge water.Self-priming up to a height of 2,5m.Can run dry, it can also handle a mixture of air and water.Pump head rotatable 360°.Electric motor with power-out manual-crank backup.Connections: for Ø38mm hose. Spare parts: membrane kit N/Ref: 251050, pump body N/Ref: 251135, pump body and valves N/Ref: 2511371clamp kit N/Ref: 251137