General Pump Pressure Washer Stainless Steel Quick Couple Nipple ND10077P

I love the fact that this nipple is Stainless Steel. It is made in China, so I'm not really sure the grade of Stainless. There are a few 1/4" quick disconnect female couplers it will not work with. I found with a quick trip to the big box hardware stores that it doesn't seem to work with "some" Simpson pressure washer hoses but fits other washers by Simpson. I have also read that some if not most of the Generac pressure washers also use a nipple with a shorter neck on them like certain Simpson products previously mentioned. Since most people, I suspect, will be buying this to work with a pressure washer from Northern, which I do not own, it shouldn't be a problem. It seems to work on everything I have come across otherwise though, especially the couplers and such I ordered later from Northern. If it doesn't fit, an quick changing of couplers will remedy the situation.