Click here to Find a Contractor in your area.
In fairness to all, we don't discuss pricing on the Wall. Thanks for your cooperation.
Need to contact us? Visit

Running 1/2" PEX through a 3/4" PEX chase

SciencemanScienceman Member Posts: 1
I used Watts 3/4" radiant PEX between the 2nd floor and the basement in a 200+ year old house as a chase for 1/2" Wisbro hePEX. Will this be a problem as a result of differential rates of expansion? I did not want the Wisbro PEX to be abraded as it was fed through this chase to and from the header.


  • kcoppkcopp Member Posts: 2,855
    IF you can get the tubing through there you will be fine.
  • EBEBRATT-EdEBEBRATT-Ed Member Posts: 2,861
    doubt it will fit but go for it
  • ZmanZman Member Posts: 3,593
    I have done short sections like that to avoid abrasion from metal plaster lathe. It worked just fine.
    "If you can't explain it simply, you don't understand it well enough"
    Albert Einstein
  • PatNPatN Member Posts: 2
    I have used ENT tubing for sleeving pex many times. l
    3/4 in. x 100 ft. ENT Coil - Google carlon ent/smurf tube

Sign In or Register to comment.


It looks like you're new here. If you want to get involved, click one of these buttons!