Quote Originally Posted by TheDude80 View Post
it definitely looked like brass, and I have never seen a copper valve before, but figured I would ask just to make sure.
+1 on the valve being brass. As posted above, most of those are steel or brass. They do make copper valves (like ball valves) which are very easy to tell they are copper. This is a good example of "red brass" which is brass that has copper in it which gives it a small red glow. It should bring more than regular "yellow brass".