I have a 13" opening in the ceiling. Which diffuser size am I going to need to cover that, 13" or 18"?
Energy, Water & Air
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Open Oct 01, 2023 - 08:56 AM
1answer
Staff Answer
Oct 22, 2023 - 07:51 AM
The tubular skylights come in 13" diameter, so that is what should work.
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