2 Acme Engineering Backdraft Dampers - AR11 - 11"x11" - 15M1039

Description

New in Open Box
2
Acme Engineering & Manufacturing
Backdraft Dampers
AR11
11" x 11" outside dimensions
8" x 8" Damper Size (according to info found on acme fan website.
One of the boxes was opened and one wasn't -- I opened the one that had not been opened to make sure that the one that was opened had the same items in it.
I know nothing about these things, other than what I found on the internet.