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    Insul-Plug Q&A with the NFI Certified Specialists

    * Please Note: All customer questions are answered by our NFI Certified Specialists free of charge!
    1 Question & 1 Answer
    Jim C
    from Waterford, CT asked:
    December 20, 2017
    I see that there are 6 and 8 inch insul-plugs. I have an old chimney with a 7 inch hole. Do you have the intermediate size?
    1 Answer
    We do not have a 7" plug and you would most likely have to either shave down the ceramic sleeve on the 8" or fabricate something on your end.
    Submitted by: Kelsey C. on December 20, 2017

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