iPower12-Inch Square Aluminum Automatic Gravity Shutter Louver Vent, Silver

I bought this to replace a plastic vent that had failed. I am sure that it will outlast the old one. It is a high quality piece.

This static vent work great. The three louvers are light weight and open accordingly as you turn on an exhaust fan. I shielded the vent with a protective cover to keep blowing rain out.Installation is easy. I did add a small strip of weatherstripping to aid in the seal to the structure.It is a little pricy but overall, a great value.

This works fine. My only complaint is it doesn't seal very well. I am using it in my wood shop to exhaust lacquer fumes and sawdust and the small gaps around the sides will allow bugs to enter. I probably need a much bigger opening that I could add a screen to but that is not an option in a rented shop and a screen in my small opening blocks too much air flow. Other than that it is great.

Perfect vents used in green houses

works great

I need one fixed with a screen on the back so I'm having to send this one back.

Opens and closes easily. Could use a coated mesh screen to keep rodents or birds out.

This is a very nice piece.Very good packaging so it doesn’t get damaged.Louvers open easily and smoothly so don’t worry about if your fan has enough force to hold them open.A 12” round AC duct work collar fits perfectly on the back side opening.