This item may be available in a different size, colour, scent, version or platform:
Broan 421
Vertical discharge in-line damper operates in conjunction with the use of your ventilation fan or range hood Damper is made of 24 gauge galvanized steel construction for durability and long life Sold as 1 to a carton
Broan 421 In Line Damper 10" Vertical Discharge In-Line Damper