Highest quality stainless steel will last a lifetime. For the gas side of a ball-lock keg (you can tell by the grey ring around the base, the beer side has a black ring). This fitting features a ¼" hose barb. 2.25" tall.
These fit modern kegs only: If you have older USA made ball lock kegs, you will find this ball lock fitting does not fit as it is machined a bit tighter than the old standard. These fit KegLand, AEB, Old Ale,Torpedo, and other modern kegs, BUT DO NOT FIT OLDER CORNELIUS, SPARTANBURG, FIRESTONE, ALLOY PRODUCTS, AND OTHER OLD UNBRANDED KEGS.