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Large 6 inch Collar Gooseneck Roof Vent
Part Number DJK688
Large 6 inch Collar Gooseneck Roof Vent
Mostly for commercial dryers
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Questions about this item? Ask here. Questions about this item? Ask here. (See 6 Questions)
Retail Price: $45.00
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This rather large galvanized roof cap has a plate size of 14" x 14" and the structure is 8" x 8" and about 8" high.  It has a 6 inch diameter collar 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 light-weight 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.  It will work on a flat roof as long as there is no chance of standing water due to a plugged up scupper or drain.  Note: Likely not recommended for use with a very high-profile roof tile like true Spanish Barrel as there is 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.
Note: 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.
Not recommended for flat roofs where the water level could exceed 2.5� due to the inability of the roofs� drains to dissipate the water. 
Questions and Answers View all Q&A
Q: Looking to use this for a bathroom vent on a low slope roof with 6" ducting. Will the baffle work with a 70cfm bathroom vent. If not, what minimum cdm is required? Thanks!
Asked by:  - 6/30/2014 (Submit an answer)
A: WE have not tested for this with this larger damper. 70cfm's through this large of vent may not be sufficient to lift the weight of the damper.
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Q: Do you make a curb mount model of this?
Asked by:  - 1/27/2015 (Submit an answer)
A: We do not. Only the 4" version. If you needed many of them, I could have them manufactured.
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Q: Does unit DJK688 (Large 6 inch Collar Gooseneck Roof Vent) come in brown and is it possible to supply a screen for it? Thanks...
Asked by:  - 4/28/2015 (Submit an answer)
A: At this point we do not offer the 688 in any color, nor have we decided to include a screen. Sorry.
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Customer Reviews Average Rating review
Gooseneck roof vent with 6-inch collar
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.
Reviewed by: Bill from Florida. on 9/23/2015
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.
Reviewed by: LARRY from WATERLOO,ONTARIO CANADA. on 7/9/2015
Great Product
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).
Reviewed by: Rob from Sacramento, CA. on 12/7/2011
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