Broan 641 Wall Cap for 6" Round Duct for Range Hoods and Bath Ventilation Fans

A different range hood vent was previously purchased, but the rear connector was too long. This model has a a very small female connector and only required the connector sheet metal to be crimped. The hood is well constructed and looks nice.

Aluminum so it doesn’t rust and you can paint it to matchVer well builtGreat price for the quality

Very happy with this wall cap. We installed a vent pipe as part of our kitchen remodel. This part of the installation was very easy. Despite what other reviews said in the past, I found no construction or quality issues with this item. The spring is tight but the damper opens easily. The screen at the end is removable, and although it will not prevent insects from taking residence, it should provide an adequate deterrent to other kinds of pests. My only slight caveat is that I would have liked to have had some additional instructions for installation. We put this over our vinyl siding rather than under as the outer flange is the same size as the lap, and the hole position was non-negotiable due to structural obstacles interior to the wall. We would have had the bottom edge sticking out if we had put it under the siding, so we put it on top. I screwed 2 screws in it and caulked the heck out of the outer edge. I *think* we should be fine--- but it would have been nice to see some additional guidelines/suggestions in the box.

The wall cap is made of heavy gauge aluminum and looks very nice once installed. The spring loaded louver door works well and seals correctly. It has a wide flange on 3 sides so you can cover them with siding. The bottom edge should go on top of the siding.The issues I had installing it are minor, but they are worth noting: 1) no install instructions, 2) if you are using a flexible duct, you need to add a 6" adapter first. You can't connect the flexible duct directly, 3) when connecting the adapter, you need to cut a notch in the the adapter so it doesn't interfere with the louver door spring, 4) you will need to use small galvanized screws to connect the adapter to the wall cap.

The cap arrived in excellent shape. The spring loaded damper closes flat against the gasket. No modifications required. The bird (bug) screen is 1/4" hardware cloth and should keep out most critters and it was installed securely and should not fall out. The collar is short, about 1.25", but I knew I would have to be attached it to a piece of duct to extend it through the wall. The collar fit over the crimped end of the duct with some persuasion, typical of most ductwork. The cap material is fairly light gage but should hold up fine without abuse.

relatively easy to install except I was 30 feet up a ladder on the side of an attic wall . It has a projection of about an inch of the 6 inch pipe that goes into the wall . Pretty heavy gauge aluminum with a spring loaded damper and a removable piece of hardware screen to deter the critters from trying to get in . God Broan quality

The unit is adequate and will get the job done, but the quality is average. As stated in some of the other reviews it is very difficult to directly connect a 6 inch duct to this unit. You’re better off purchasing the Lambro duct connector. I simply put the connector between the unit and the 6 inch hose - used HVAC tape on the joint and sealed it up.

My unit came in perfect condition and well packed. It's a simple design but works well. My original vent cover was a cheap plastic louver that was screwed to the wall using masonry screws. Because of that I had to chisel around the exhaust pipe to fit this around the pipe. I had to use a mallet to get the cap seated and it stood up to the pounding with out any noticable damage. After I got it snugged up I was able to screw it flat to wall and seal the edges with silicone caulk.The end product works well, looks good and prevents back drafts.It was a little difficult to install because I was replacing a different style of cap. I suspect if you already have something similar this would be a quick job.

It looks 100% better than anything plastic. It has a wire bird screen and the gentle spring allows it to open when the kitchen exhaust is on low, but has enough strength to keep it closed even during windy periods.

Très bonne construction

Works great with our Microwave exhaust. Painted to match finish on the house, blends nicely.Flap works flawlessly.

I got this to work, but the 6" diameter opening is flanged and had a hard time getting this as flush as possible to a wood exterior. Actually had to crimp and cut for it to fit.

Used the item for venting a kitchen range hood that required 6 inch