I hope my fellow Autopians can help me with this. I was going to buy a Greenworks GPW 1501 pressure washer. I needed a 50 ft pressure hose for it. I contacted Greeneorks to see what connection they used on their pressure hose. I got a cryptic message basically saying their was proprietary. So I thinking about buying a AR Blue Clean 1600. AR offers a optional quick connect garden hose connection. What connection does the pressure hose have? AR offers a 50 ft hose for around $150 which is more than the 1600 cost. I would like to buy an after market 50 ft hose for the 1600. Can anyone help me.