“3/4" hePEX works great for boiler retrofits, where there are often several heating zones and an indirect water heater that need to be attached to the new boiler loop plumbing.”
“5 /8 easy to work with. I LIKE the pro pex expander fittings. Good assortment of adapters for connection to 3/4 fin tube. No one with skill will mistake it for domestic water main.”
