Duravent Square Ceiling Support Box

Marsoni

M251S

$171.57

Get it in 3 business days with 1 day shipping. Friday, May 29

Duravent Square Ceiling Support BoxThe Duravent Square Ceiling Support Box provides a high quality support for your Duratech Chimney system and an integrated flue extension for tight installations. This support box is suitable for flat and cathedral (A Frame) ceiling applications, as well as short attic spaces. It fits between standard 16 inch on center joists and most manufactured home applications. With various sizes to choose from so that each unit provides a positive connection

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Standard: 3-7 business days
Fast: 2-3 business days
Express: 1-2 business days

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Exchange/Return Notes

We offer a 30-day return/exchange service after receiving.
Final sale items are not eligible for returns or exchanges.
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These are so comfy. I love them. They have made my life so much better. I have really bad insomnia. I was also getting neck pains from my old pillows. These are just the best for sitting up and sleeping. I can not tell you how much these changed my life. They are worth a shot if you are looking for something. 10 out of 10.

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Reviewed in the United States on April 29, 2026