RV Water Connection

I have a water connection here for my camper van. There are already a few here, but none of them ever fit quite right; either the water connection for the hose was designed incorrectly, or the 3 claws at the bottom were too thin, too long, or brittle. With others, there was no air hole or it was the wrong size or position. So I designed this one myself and printed it in ASA. It could certainly be more economical, but it also has to withstand a lot. I'm curious to see if it fits yours too or if my connection is a special case.