You're very welcome! ... and yes they are! I have rebuilt the things a few times and always wondered WHY they cost so much... At the time I was using them they went for about $350 and rebuilding one would set you back around $200... yet, it was a piece of (albeit heavy) plastic, spring, diaphragm, adjustment screw... small stainless housing with threads for TC ferrule and a pressure gauge. I wish I had ASKED someone at the time why they cost so much LOL Maybe it was an issue of liability? Test, double test, insurance, etc. Obviously IF one failed the results could be potentially be VERY ugly... maybe it was because the Germans making them were paying their people the big bucks... I dunno... Whatever... they WORKED and worked well! Again, let me say, GOOD JOB!