 £122.72 - £224.95 5.5 litre/min open flow positive displacement 3 chamber self priming diaphragm pump with bypass (internal re-circulation) control. Available with 12v DC, 230v AC & 230v AC long life induction motors. |  £122.72 - £224.95 5.5 litre/min open flow positive displacement 3 chamber self priming diaphragm pump with pressure switch control. Available with 12v DC, 230v AC & 230v AC long life induction motors. | £224.95 - £229.95 10 litre/min open flow positive displacement 3 chamber self priming diaphragm pump with either no control or fitted with 45 PSI pressure switch. Available with 230v AC long life induction motor. |