This quick-connect hose coupling has a length of 2½ inches, a maximum operating pressure of 250 psi @ 70 Degrees F and is silver, has an operating temperature of 0 Degrees to 160 Degrees F and is made of brass with a nickel-plated finish/coating. In addition, it has a ½"-14 thread. Plus, it has an NPTF connection type. This quick-connect hose coupling includes valve plus it is for use on compressed air systems.