My pressure washer used M22 15. I wanted to convert the PW to quick disconnects to avoid wear and tear and make it easier to connect. I had also bought a 50 foot PW hose as the one that came with it was only 25 feet and I had to constantly move the PW just to wash my truck. I almost ordered the connectors individually until I saw this box. This box was perfect for me to change the connectors on: the pressure washer, the pressure washer hose, my garden hose that connects to the pressure washer, the pressure washer gun. Plenty of teflon tape came included. I fixed all leaks with that.I used to have leaks around the area where you screw the garden hose into the pressure washer. It might not leak initially, but it seemed like as time went on, the hose would loosen and water would be every where and the PW would start surging. I didn't want to keep trying to over tighten the hose. These connectors solved that problem. It came with a swivel connector and I used it for the garden hose connector to save wear and tear on the PW and to prevent the garden hose from loosening.
Rating: [5 of 5 Stars!]