In fairness to all, we don't discuss pricing on the Wall. Thanks for your cooperation.
Can I use 1" pex for supply and return loops to my cast iron rads? I want to replace old 1 1/4" steel pipes and want to do a reverse loop when I change it out. It's roughly 100' loop around the perimeter of the house. I will branch off with 3/4" pex with 11 branches, 9 rads and 2 baseboard runs. I know I will need a new circulator, which isn't a problem, it's older and noisy. Thanks