The quiet and pulsation-free Aqua Jet five-chamber diaphragm wash down pumps provide theperfect wash down solution for cleaning recreational equipment. With a higher pressure of up to 5 bar, clean-up is faster and easier than ever before. Complete with spray pistol, PUMProtector inlet strainer and hose connections for ½" hose. Both BSP and NPT connections included. Aqua Jet WD 2.9 pressure cut off: 2.8 bar / 41 psi. Aqua Jet WD 3.5 & 5.2 pressure cut off: 5 bar / 70 psi.