DryerJack Large Roof Vent
6" Collar, Mill Finish

3 Reviews


The DryerJack Model DJK688 is a rather large galvanized roof cap, having a plate size of 14" x 14", with a hood size of 8" x 8" and about 8" high. The collar is 6 inches in diameter, a size that is typically found in commercial dryers or range hoods. There is no screen in this vent as it is assumed it is being used for clothes dryers.

Unlike other roof vents, this lightweight damper is curved, which increases the efficiency dramatically. The opening is about 15% larger than the round pipe portion and with the curved damper, there is minimal restriction. The collar penetrates the plate about 3 inches and is sealed to the plate with a silicone bead.

Note: Not recommended for use with a very high-profile roof tile like true Spanish Barrel as there are only 5 inches between the opening and the bottom plate. With the slope on the damper and the smooth surface, the vent/damper should make it difficult for a bird to build a nest. This vent is proudly made in the USA.

We do not guarantee this roof mounted fitting will prevent rain water intrusion from wind-blown rain or torrential storm conditions.

Professional installation is recommended.


Technical Documentation

Ratings & Reviews

3 Reviews

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by LARRY| 7/9/2015 12:00:00 am

Just installed and couldn't be happier! I am using it with a soler palau TD150S inline exhaust fan and a Fantech backdraft damper. This combination works flawlessly I had to fabricate a screen to keep critters out but that was no problem the only down side is that I wish would come pre painted but over all I am very happy with the product and would recommend it.

Gooseneck roof vent with 6-inch collar

by Bill| 9/23/2015 12:00:00 am

It's well made and a good design. I have not installed it yet, partly because I'm putting it on a tin roof where there is only 7 1/4 inch wide flat area. This unit is 8 inches square, which gives more square inch space than the 6-inch round duct needs. A six-inch square base would have been big enough. I would have preferred to have a vent of this with the square part only six inches square. That would have been much easier to install.

Great Product

by Rob| 12/7/2011 12:00:00 am

I just built an attached third car garage. I wanted an efficient vent that would work with my low-slope roof. This one met all the requirements and works great. It has a flapper inside to keep the critters out too. I had difficulties finding the proper 4" to 6" increaser and ended up using a type-B increaser. Make sure you buy an increaser and not a reducer. Overall I'm very happy with this product and the installation was a breeze (even for a first timer).