NPT vs slip fit diverter handle spout

Discussion in 'Shower & bathtub Forum & Blog' started by leorob, Oct 16, 2009.

  1. leorob

    leorob New Member

    Messages:
    7
    Location:
    Los Angeles
    I will be installing a Kohler 3 handle shower/tub Valve (K-303-K).
    I have a choice of NPT or slip fit hardware. (K-T15231-4S or K-T15231-4).

    I need help in deciding between the NPT and the slip fit.
    Pros and Cons of each?

    Thanks
  2. jadnashua

    jadnashua Retired Defense Industry Engineer xxx

    Messages:
    21,917
    Location:
    New England
    It's much easier to get the slip-fit unit to snug up to the wall, and should work fine. But, if you use copper and tighten the set screw too tight, you can bend the pipe and give you grief later on.
  3. hj

    hj Moderator & Master Plumber Staff Member

    Messages:
    26,508
    Location:
    Cave Creek, Arizona
    spout

    slip fit is easier to install and replace, IF the pipe is absolutely square to the wall. Otherwise you will always have a gap somewhere.
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