This gun is used as a replacement for the Karcher original and fits the new style CLICK hoses (not the old C CLIP type). Just push the yellow button to accept / release the hose; exactly the same as the original. It will accept the original Karcher bayonet Lance too.
Note: This is for newer style 'click' quick release hoses, not for older style 'c' clip hoses
Max. Pressure: 2175 psi / 150 bar
Max. Flowrate: 10 litres / minute
Max. Temperature: 60°C