Who makes the best one , or does it make any difference
Thanks.
DO NOT get ones from Home Depot. I bought three, and three leaked, no STAYED WIDE OPEN. Milton seems pretty good, we use them at the shop.
Just had this very same thing happen to me today with the HD QD 
The Porsche shop I go to switched over from Amflo to CEJN. Pretty nice stuff.
http://www.ohlheiser.com/products/cejn/default.htm
[I am partial to an old style Shrader that I think is no longer sold these days myself.
There was a test done some years ago (late 70s) which put a lot of the brand name couplers and fittings through a series of punishing tests. I can't recall if it was Popular Mechanics or Hot Rod --but the end result was Milton and ACME tied as the most durable
Milton is the most common -- and no one's ever heard of ACME, but I switched to ACME and have never had any problems
http://www1.mscdirect.com/CGI/GSDRVSM?PACACHE=000000044687958
here's what they look like --
I use both the Tomco and the Prevost with Milton M connectors ... the Prevost really rocks ...
http://www.ultimategarage.com/hardware/prevost.html
I use both the Tomco and the Prevost with Milton M connectors ... the Prevost really rocks ...
http://www.ultimategarage.com/hardware/prevost.html
I stopped at NAPA, Carquest, AirGas, and a few more places, nobody ever heard of anti whip or safety air couplers, but more than a few thought it was a good idea and wanted one. Ended up at McFadden Dale industrial hardware and bought one Amflo C61 universal to replace the POS that came on my sears compressor. Watching ebay or ordering online seems like the only option.