Roof Vent Cap - Hon&Guan Roof Vents 4 Inch Galvanized Steel Bathroom 4 Roof Exhaust Vent for Ventilation System-with Damper, Black

Solid. Well made. Collar fits easily into semi rigid ducting.I would buy this product again.

Good muy bueno.

This was my first vent install, so I found a 'this old house' video on youtube. There were some caveats not covered in the videos i found.I used a 4" hole saw(s) to drill through two layers of shingles. You need to use a carbide tipped hole saw, or those shingles will sand the teeth right off your bit. I killed a harbor freight hole saw, sanded it flat - as shown. I thought it was a HF problem, so i bought an 'all-material' Milwaukee saw, and that one sanded flat too.I found you can use the cardboard packaging to help get things lined up with the shingles above. One side of the cardboard is slightly bigger, so there is a right/wrong side.I ended up trimming about a half inch off the duct collar to reduce the overall height and make it a bit easier to slide under the shingles.UPDATE: I knocked it down from 5 stars to 4. About a week after I installed it, I noticed a promotional warranty card stuck in the grate. It had been included with the vent - stuffed behind the damper. I removed it in the second vent I installed, but i didn't catch it in the first vent. Had to get back into the attic and disconnect the vent to pull it out.

Un artículo adecuado y perfecto a la medida de 4 pulgadas diametro de circunferencia.

I loved the cap nice weight easy to do.

Works like it should. Purchased for my small shed that houses my pool equipment. Installed it on the wall at the gable end. Installed a solar fan into it.

It's on the roof. No leaks. Fart fan air comes out of it. It stinks

Build quality looks good but the damper is super noisy! Rattles all the time if there’s a slight wind. Now I have to get an inline damper, which adds to the cost!!!