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Thread: Which Cast Iron Flange Replacement is best

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  1. #1
    DIY Junior Member tomtbone's Avatar
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    Default Which Cast Iron Flange Replacement is best

    Today I successfully removed the old cast iron toilet flange and am left with a 4" cast iron pipe. The top of the pipe will be about 1.25" below the level of the finished floor. I am looking at a couple of PVC/ABS replacement flange from Oatey and Sioux Chief. Which one would you guys reccomend?

    Oatey Compression joint with screws to tighten compression


    Oatey Twist 'n' Set


    Sioux Chief Gasketed Closet Flange


    Sioux Chief Push-Tite Flange

  2. #2
    In the Trades Wally Hays's Avatar
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    They are all about the same but I like the ones with a stainless steel ring.
    Perception is 3/4 of reality

  3. #3
    DIY Junior Member tomtbone's Avatar
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    Also, PVC or abs

  4. #4
    Retired Defense Industry Engineer jadnashua's Avatar
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    ABS vs PVC is irrelevant when attaching to CI, so pick the one you can get easily, or is less expensive. I'd definately go for one with the (stronger) SS ring, though. Won't rust, or deflect or break as easily as an all plastic one.
    Jim DeBruycker
    Important note - I'm not a pro
    Retired Defense Industry Engineer; Schluter 2.5-day Workshop Completed 2013, 2014

  5. #5
    TROJAN WORLDWIDE SALES RP MACPLUMB 777's Avatar
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    THIS IS WHAT YOU NEED THOSE CHEAP PLASTIC FLANGES ARE JUST THAT CHEAP !
    THEY ARE MADE AS REPLACEMENT FOR BAD PLASTIC FLANGES !
    YOU NEED TO GO TO FRANK PATTERN & MANUFACTURING WEB SITE THEY HAVE ONE THAT IS 4" X 4"
    TO BRING YOUR REPLACEMENT UP ABOVE THE FINISHED FLOOR LEVEL WHERE IT NEEDS TO BE
    http://www.instantset.com/closet_rings.htm
    Home
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    Closet Rings
    Cast Iron
    Model Numbers
    Size
    Regular
    3"x2"
    30
    4"x2"
    40
    4"x2"
    40TC
    (w/test cap)
    Instant SetŪ - Closet Ring 4"x4"
    Model Numbers
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    Regular

    Deep
    4"x4"

    -

    44

    Instant SetŪ - Closet Ring 4"x6"

    Model Numbers
    Size

    Regular

    Deep
    4"x6"

    MACPLUMB 777

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  6. #6
    DIY Junior Member tomtbone's Avatar
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    So do those flanges fasten to the outside of the pipe then? I'm not quite getting how they work. Also, for the 2" deep size, how much pipe does there need to be to grab onto?

  7. #7
    DIY Junior Member tomtbone's Avatar
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    So do those flanges fasten to the outside of the pipe then? I'm not quite getting how they work. Also, for the 2" deep size, how much pipe does there need to be to grab onto?

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