SPX Johnson Viking Vacuum self-priming diaphragm pump endowed with double non-return valves, no need for filters. Used also to transfer grey or even non-macerated waste waters from holding tank to dock station or to the sea. It can be cranked by hand in case of emergency.Easy to install anywhere, thanks to the 360° rotatable pump head it can be set up in different pump/motor configurations.Designed with a ball bearing supported transmission for long life. Not only can it run dry, but it can also handle a mixture of air and water without difficulty. Although powered by an electric motor, this pump can also be operated by hand in an emergency.• Maximum flow 32 Lt/min• Designed to empty waste water and bilges• Easy to install, even in tight spaces• Quiet operation• Easy and low-cost maintenance• Self-priming up to 2,5m (8.2ft)• High impact glass fiber reinforced nylon body• Can run dry and can pump air/water mixture• Robust (single) diaphragm