A pressure controlled freshwater pump that includes a 25 p.s.i pressure switch that starts pumping when a faucet is opened and the pressure drops.This pump alows any type of faucet to be fitted, from 3/8" 10mm bore for minimum water use to 1/2" 13mm bore maximum water flow. The pump is self-priming, quiet in operation and can be dry run for extended periods. It supplies a constant low flow fresh water supply at 2.9 gallons per minute. The unit is available in low or high pressure, choose high pressure for a slightly larger flow rate for systems using 2 - 3 high pressure outlets such as showers. Output: 11 litres/minute (2.4 gallons/minute) open flow. Pressure Switch: cuts out at 1.7bar (25psi). For 2 or more outlets.