In fairness to all, we don't discuss pricing on the Wall. Thanks for your cooperation.
I can't tell you how many of these I've installed - many. And when I come back to service the system, I find that a large percentage of them leak from where the brass air eliminator screws into the iron body. I tried replacing the air eliminator on a job today and the threads were frozen and I totally ruined the air eliminator, turning it into an expensive job.
I'm just curious:
1) Why do these leak? Bad pipe dope at the factory?
2) Why is the air eliminator so hard to remove?
Often wrong, never in doubt.