Sturdy Aluminum Grille for Exhaust Fan.
Gravity self-closing when not in use.

Opening size on the wall (for installation) to choose from:

12"x12" =$13.50
14"x14" =$16.50
16"x16" =$19.00
18"x18" =$24.50
20"x20" =$30.00
22"x22" =$35.50
24"x24" =$40.50