Added these to my pressure washer to help avoid kinks in the hose and, more importantly, to make setup and tear down easier. Face it, it's much easier to use a quick connect than it is to screw and unscrew the fittings each time you use them.The build quality seems very good. They have a nice, solid feel in the hand and give the impression that they will hold up for quite a while. In the weeks that I've had them they've shown no signs of wear or corrosion.I've seen no evidence of leakage from either fitting and look forward to years of service.