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What do they call the things going from closet to attic?
Quick question on a brain fart kind of day. I'm getting ready to upgrade my circ in my grow closet and would like to do it clean and right.
I can exhaust from closet to attic, but what to they call the thing that would cover the hole and have the 4-6" duct hole attached?
Can't explain it to well....figure I'll have a 6" duct exhausting, but figure they have a coupling or such for air tightness...don't want a large ugly hole.
Any help, thoughts are appreciated.
Thanks, OGH
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