The Par-Max automatic pressure pumps automatically begin to operate when a tap is opened. This is an efficient high-flow self priming pump serving 2-3 outlets at the same time. Self primes to 3 metres high, can run dry without damage. Delivers 11 litres/minute, pressure switch cuts in at 1.0bar/15psi and out at 1.7bar/25psi. Uses 13mm (1/2”) hose. Dimensions: 230 x 152 x 110 mm. 12 V.