Thanks for posting that pic Jim, there are only 20 of these out there currently, the folks who build our
Universal machined from solid Stainless steel, FeatherTouch valve normally build valves for NASA, they are overbuilt to really high standards, they are rated @ 1500psi and would probably stand up to twice that, but I won't say that publicly, currently the heat rating is 250ºf, but we have several being run higher with no ill effects, the only real limit is the tripple Teflon seals, I will take a pic of a standard valve stem and compare it to the Universal for comparison, it is a cadillac valve that will last you as long as your wand.
I call it the Universal valve because of the Black adapter plates, I have several plate kits avail. that allow the valve to be retro-fitted to just about any wand, right now the bulk are installed on Greenhorns and Titanium wands like Jim's.
If you just want a cheap $29 valve, stick with the brass valve we include on the Greenhorns, this is a different investment.