Connecting PEX to PB
Posted by Chris Schnorr on June 06, 2003 at 15:02:27:

My house was built in 1988 and has PB (gray) pipe with mostly plastic fittings. As I do repairs I would like to replace sections with PEX. I have the crimpers and they work on either pipe. I understand the crimp rings have different ID's so are not interchangeable, and that the PB fittings have 4 or more ribs while the PEX fittings have 2 ribs. My questions are:
1) Can I attach PEX pipe to a PB fitting? If so, how?
2) Can I attach PB pipe to a PEX fitting? If so, how?

I ask this because I would like to replace sections at the fittings (U's and T's) and I only know of inline connectors for joining PEX to PB. I don't want to repipe the whole house and I am not having any leak problems (just normal faucet type stuff that needs replacing).

Thanks Terry,

Replies to this post