Draft Blocker - 6'' Inch Backdraft Damper Duct - Draft Stopper - Backflow Preventer - Inline Fan Vent - Vent Deflector (6'' Inch)

I installed my exhaust fan for the bathroom so happy with it is doing the job perfectly and your best quality not like Home Depot or Lowe’s you buy it this is a lot better

I put this in my basement to exhaust my server equipment heat out the window. Well now it's down in the 40° range outside and it's actually too cold for me. The damper definitely works no cold air seeping inside. However the damper has to be installed 9:00 and 3:00 not 12 and 6:00

Listing showed it to be black and came in plain aluminum but did a quick black spray paint on it.Needed for outdoor draft off of Jen-Air stove.

No issue installing level. Cannot be installed vertically.

Long, long , story short... flapper valve keeps cold winter air from entering exhaust from on demand hot water heater. No more frozen pipes or covering roof exit when experiencing winter temps. Problem solved.

Excellent! Really easy to fit into the duct in my crawl space. I need to make sure that the duct is closed when not in use to prevent critters from entering. The damper opens out easily when air is being blown and otherwise stays closed. It opens in one direction, so nothing can enter from the outside into the duct when the damper is closed.

this and another different brand that look different in the picture show up exactly the same with the same label just different company name. they are made in Russia. the springs are weak, the housing is short. era pro and evecs label are the same cheap product.

Installed this when replacing my downdraft gas cooking top. Installed in a vertical position, it works very well. Almost entirely eliminates all backdraft in the cold season. Good price and sturdy.