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Thread: Rohm Twinmaster o rings

  1. #1
    Join Date
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    Rohm Twinmaster o rings

    Can anyone tell me the size of the o ring on the fill adapter for the twinmaster top ?


    tia


    wwwdot
    Bsa R10 Mk2 .177, Theoben Evolution .177 CS800, TX200HC .177, HW100T .177 Bullpup, Airwolf MVT .177, Ray Neale Titanium JIm Vickers stock .177

  2. #2
    Join Date
    Sep 2008
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    Cannot remember the size but you do need the green nitrile ones, if you have an original one try a hydraulics company, when I had a twinmaster top I got some extra seals from a local hydraulic company for a few pence each, thankfully they had some in stock, if they didn't I would have had to order them, the minimum order is/was £5, that would have got me a few hundred seals (note this was 6 years ago)
    "Men occasionally stumble on the truth, but most of them pick themselves up and hurry off as if nothing had happened" Winston Churchill
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  3. #3
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    Jan 2009
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    Best Fittings do the adapter for £17.50.
    They might sell you an o ring or two.

  4. #4
    Join Date
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    Quote Originally Posted by gingernut View Post
    Best Fittings do the adapter for £17.50.
    They might sell you an o ring or two.
    Aready got two adapters. Best fittings are very expensive for what they sell. You can buy an awful lot of o rings from polymax for a lot less. Just need the size
    Bsa R10 Mk2 .177, Theoben Evolution .177 CS800, TX200HC .177, HW100T .177 Bullpup, Airwolf MVT .177, Ray Neale Titanium JIm Vickers stock .177

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