Updated about 12 years ago on . Most recent reply
Exhaust Vent Cover
Our building is older and has 3" ducting for the bathroom exhaust vents. Two of them that exit the building from the ground floor are missing the hood/flapper that keeps birds, etc. out of the duct. 4" stuff is easy to find, but I can't seem to find one for a 3" duct. I found one that was a 3" duct, but if it's exactly the same size as the duct it won't go in. It needs to be slightly smaller.
Any tips on where I could find such a thing?