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    Site Sponsor Terrytruett's Avatar
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    303 Toilet Seal Part Number

    I've tried to search with no luck. Looking for 2018 303 toilet seal. Could not find any info on the factory ball to bowl seal on the toilet.
    T

    Tt
    Thank you!

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  2. #2
    Paid my dues 😁 FT4NOW's Avatar
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    It's most likely a Thetford Aqua Magic Style II. We had 2 of those and ended up replacing them with Dometic versions. I replaced my Thetford bowl gasket and it started leaking again eventually. The toilet has to be disassembled to replace it, with Dometic, all you do is open the flapper valve, pull the seal and put in a new one. Not to mention the Dometic 320 is more residential style and comfortable.

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  3. #3
    Site Sponsor livinthelife's Avatar
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    Quote Originally Posted by Terrytruett View Post
    I've tried to search with no luck. Looking for 2018 303 toilet seal. Could not find any info on the factory ball to bowl seal on the toilet.
    T

    Tt
    Did you look on the Grand Design website?
    Click on "Owner Support" tab
    Hover over "Service and Warranty" link
    Click on "Parts Lookup"
    Fill out info as to RV type and scroll through the pages of parts. Sometimes it's not located in the area you think it is..

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