Removable Roof Vents, Hon&Guan 4 Inch Roof Dryer Vent for Houses, Galvanized Steel 4 Inch Exhaust Vent for Ventilation System-with Damper, Black.

It wasn't too hard to install and works well for venting my air conditioner. It's strong and attractive.

Was lookin for low profile roof vents for exhaust and return. The was a great combination of size and looks with protective mesh as well.

Although this vent is meant for the roof I installed in on the outside wall. It does not have a spring to close the duct but I think it is okay, gravity helps it close. Other than that, the unit is great, good black color has a protective screen and looks nice on the wall.

This 8” version was used to connect to our new range hood in the kitchen below. It fit the hole created by the 8” hole saw snugly. The roof is only slightly pitched and is topped with rubber membrane. This adhered to it with flashing adhesive very securely. Looks professional.

Good product for the money, but there was no screws for the top part.

Well made and easy cleaning

I have a low pitch roof and the water can come into the vent if the rain is heavy. There is no curve to prevent the rain from coming in when heavy rains with strong winds blow. I will use a different one for low-pitched roofing.

It did the job I needed done, reasonable cost,easy install

Exactly what I needed for my exhaust system in workshop.