I have a Karcher similar to the K2 or K4 in the link posted above. It is either 1600 or 1800 psi. Does what I need. The connector the hose attaches to is a plastic 90 deg fitting. It broke. I ordered a new one, and found out that they break, or crack, all the time. I had decided to get rid of it when that fitting broke. Actually took it apart and threw it in the trash. Then, decided to fix it with brass fittings. Put it back together and it has worked fine.