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Thread: Old Delta Tub/Shower Fixture (Circa 88-90) Cartridge?

  1. #1
    DIY Junior Member RBerg's Avatar
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    Default Old Delta Tub/Shower Fixture (Circa 88-90) Cartridge?

    Greetings!

    Long time lurker, first time poster and I wanted to run this through what I have come to know as my go-to forum for pluming questions.

    I have a single valve Delta tub/shower fixture that is constantly running and I guess I just don't trust those I've spoken to already about the replacement cartridge they all feel "will have no problem". We purchased the home in '98 and was built around '88 - '90 and we have never replaced the fixture, enclosure or anything. On recommendation from several at Home Depot, I picked up the blue Delta cartridge (PN#RP19804) cartridge but have not done anything with it since it appears it's not correct for the image below.

    I have no real ability to get into the wall unless I rip out the enclosure so I'm trying to see if I can get an ID from images taken at the fixture. Nothing has part numbers and the only thing I have go on is the Delta name and the U.S. Patent #3674048. No model, names or anything.

    I believe it's of a 1600 series and the replacement is the Delta #RP1991 but wanted to make sure. As well the link below is to a thread on thisforum to whom I believe had the same from a visual aspect only.

    http://www.terrylove.com/forums/show...a-shower-valve

    Thoughts? Thanks in advance!

    ~Richard
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  2. #2
    Plumbing Contractor for 49 years johnjh2o1's Avatar
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    That is the correct cartridge. When removing the nut that holds the cartridge in don't force it. There are here copper tubes that will break if to much force is applied to the nut.

    John

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    DIY Junior Member RBerg's Avatar
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    Thanks John for the confirmation but to be clear the cartridge I've listed, not the one the home improvement place said would work, is the right one. RP1991 correct?

    Thanks again!

  4. #4
    Plumbing Contractor for 49 years johnjh2o1's Avatar
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    Quote Originally Posted by RBerg View Post
    Thanks John for the confirmation but to be clear the cartridge I've listed, not the one the home improvement place said would work, is the right one. RP1991 correct?

    Thanks again!
    The RP1991 is the correct cartridge. The other one is a balance pressure cartridge which you don't have.

    John

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    DIY Junior Member RBerg's Avatar
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    Quote Originally Posted by johnjh2o1 View Post
    The RP1991 is the correct cartridge. The other one is a balance pressure cartridge which you don't have.

    John
    Awesome and as I had expected.. My many thanks to you and this forum!

    Cheers,
    ~Richard

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