- Transition from flat surface to round pipe or insulated flex duct
- Durable galvanized steel construction
- Fits most ductboard thicknesses through 1-1/2 in. (or R6 value)
- See More Details
Frequently Bought Together
Price:
$597
Product Overview
The Master Flow 8 in. Starting Collar is suitable for most HVAC applications. It provides a transition from a flat surface like a plenum (made from metal, ductboard or insulated) to round pipe or insulated flexible duct. It can be used with ductboard, an internally lined or unlined plenum. This galvanized steel starting collar features extra-long tabs to fit most duct board thicknesses.
- Connects round pipe or insulated flexible duct to a flat surface to start a duct run
- Install with sheet metal screws (not included)
- Fits most HVAC types for universal application
- Can be used with an internally lined or unlined plenum
- Extra-long tabs to fit most ductboard thicknesses through 1-1/2 in. (or R-6 value)
- Seal seams with code-approved mastic, sealant or duct tape (sold separately)
Info & Guides
Product Overview
- Transition from flat surface to round pipe or insulated flex duct
- Durable galvanized steel construction
- Fits most ductboard thicknesses through 1-1/2 in. (or R6 value)
Compare Similar Starting Collars & Take Offs
 | |  |  | |
| Brand | Master Flow | Master Flow | Master Flow | Master Flow |
| Name | 6 in. Starting Collar Take Off - Snap Together | 8 in. Starting Collar Take Off | 6 in. Air-Tite Take-Off | 7 in. Air-Tite Take-Off |
| Price | $483 | $597 | $673 | $1719 |
| Ratings | (29) | (16) | (58) | (4) |
| View Product | View Product | View Product | View Product |
Compare Similar Starting Collars & Take Offs
| | | | |
| Brand | Master Flow | Master Flow | Master Flow | Master Flow |
| Name | 6 in. Starting Collar Take Off - Snap Together | 8 in. Starting Collar Take Off | 6 in. Air-Tite Take-Off | 7 in. Air-Tite Take-Off |
| Price | $483 | $597 | $673 | $1719 |
| Ratings | (29) | (16) | (58) | (4) |
| View Product | View Product | View Product | View Product |
Specifications
Dimensions
Product Depth (in.)
10
Product Height (in.)
5.5
Product Width (in.)
10 in
Details
Brand/Model Compatibility
Universal
Gauge
30
HVAC application
All HVAC types
Material
Galvanized Steel
Product Weight (lb.)
0.82
Returnable
180-Day
Warranty / Certifications
Manufacturer Warranty
Free from Manufacturer Defect at Time of Delivery.
Questions & Answers
2Questions6Answers
can i put a damper to it ?
Asked by andy March 2, 20193
AnswersYes, though I have not done so. Comes with two prepunched holes for the damper axle. For my use I applied tape over the holes, but that's overkill as the flex duct I installed also covered those holes.
8" insulated flexible duct fit on this collar?
Asked by Gus October 21, 20153
AnswersYes, that's what I needed and that's what I did. Nice tight fit. See my review for install steps if you need them Most important point, install the collar in its final location before installing the flex duct (otherwise you need a long arm to bend the tabs over :)
Customer Reviews
Aug 21, 2019
Well constructed, the attached ring makes it easy to seal to the duct. Trace the circle onto wha...
Well constructed, the attached ring makes it easy to seal to the duct. Trace the circle onto what your installing it to, cut out the circle,
slip the tab end through and bend the tabs out (reaching through the collar) to lock the unit down. Tape the ring to the mated surface and apply mastic and let dry. Very easy, very stable. I used this with an 8x8 duct board insulated register box (which means I could not bend every tab over, but the combination was still structurally strong and a tight joint). This is a could size for a connection to flex duct. There is enough metal and there is a ridge so that with the flex duct inner liner pulled down to the ring a zip tie keeps the duct from slipping off. Tape the flex duct to the ring and tape over the zip tie, then seal the joint with mastic (repeat for the outer insulation sleeve).
by JT
Jul 2, 2019
Works as intended (8 inch) but i had some trouble sliding the flex all the way to the end of the ...
Works as intended (8 inch) but i had some trouble sliding the flex all the way to the end of the collar do to a lip thats on the collar. I didnt had that problem with the 6 inch , but may be it was the flex causing the issue not the collar. Either way price its good and once its in place its all good.
by
Related Products
Explore More on homedepot.com
Top Brands
Storage and Cleaning Supplies
Tools and Hardware
Outdoor Living
More Products
Home and Kitchen Appliances
Furniture