Very powerful, self-priming electrical diaphragm pump with reliable direct current industrial motor. This Rheinstrom diaphragm pump has been found to be very reliable over many years. It can be used as a bilge pump, a grey water pump and a delivery pump and it stands out because of its constant delivery rate, its high safety against clogging, its very good cleaning possibilities and its hard-wearing materials. Fast and easy cleaning and maintenance and direct access to the valves are obtained by simply opening the lid of the pump which is very easy. The housing has been cast with a resistant aluminium alloy and has been coated. All screws are made of stainless steel. The discharge and suction side can be altered. The housing can be turned completely. Attention: The cross section of the pipe should never be less than 1 ½“ 38 mm – or the pump capacity will not be achieved.