Most of my vents are 6"x14", and I get that Flair can only make the highest demand sizes.
Has anyone found a good way (that doesn't involve duct-work and drywall) of adapting a 4"x12" Flair vent to a 6"x"14" opening? I see some adapters for other sizes but can't seem to find this. I'm wondering if I am just searching the wrong thing.
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