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Delta Bath Faucet O-Ring sizes for RP25513 stem

Boiler Talk
Boiler Talk Member Posts: 139
in Plumbing

There are only two o-rings in this stem, but I wonder if someone here already knows the sizes of the o-rings. Does anyone know the sizes? Thanks. John

Comments

  • mattmia2
    mattmia2 Member Posts: 10,952
    edited October 8

    See if this helps:

    http://www.faucetdoctorsuperstore.com/partscatalog/PDFandImages%5Cinternalfaucets.pdf

    They list the cartridge and show a lot of Delta gasket kits but I couldn't figure out which gasket kit went with that cartridge. Once you find the gasket kit, gooling the part number for the gasket kit might give you the contents of the kit.

  • Jamie Hall
    Jamie Hall Member Posts: 24,862

    I gave up some time ago and bought a kit with a whole bunch of different size o-rings. Very handy…

    Br. Jamie, osb
    Building superintendent/caretaker, 7200 sq. ft. historic house museum with dependencies in New England
    GGrossBoiler Talk
  • Boiler Talk
    Boiler Talk Member Posts: 139
    edited October 8

    So I did purchase from HD an Everbuilt brand Assorted Faucet O-Ring kit, but I now have more than I need. The following information seems to work.

    #30 O-Ring 1/2" OD, 5/16 ID. This will stretch over the brass stem.

    #85 O-Ring 13/16" OD, 11/16" ID.

    N.B., It helps to keep the stem on the open position to keep the rubber seat Spring / Gasket in place.

  • Boiler Talk
    Boiler Talk Member Posts: 139

    Here's the answer from Delta.

    The outer o-ring is part number RP1129 which is 11/16" ID x 13/16" OD x 1/16" thick. The inner o-ring is RP75547 which is .339ID x .545OD x .103 thick. 

    Inner o-ring is slightly different then.

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