
start collar fitting
0.00 Reviews$7.99
Shipping calculated at checkoutSKU: start-04-02Barcode: Not listed
start collar built for jobsite service
Made in the USA
Field notes
Built for reliable installation
start collar details without decorative guesswork
start collar fitting for connecting round duct to a plenum, trunk, or sheet metal surface. bend tabs secure the collar in place before sealing for a clean takeoff point.
- tabbed flange grips the cut opening
- round outlet accepts common duct sections
- low-profile design keeps installs neat

Clear fitment for crews
start collar fitting for connecting round duct to a plenum, trunk, or sheet metal surface. bend tabs secure the collar in place before sealing for a clean takeoff point. tabbed flange grips the cut opening round outlet accepts common duct sections low-profile design keeps installs neat
Compatibility: Check the listed option values, SKU, and measurements before installing into finished work.
Specifications
| Specification | Details |
|---|---|
| Product type | start collar |
| Selected SKU | start-04-02 |
| Selected variant | 4 IN / 2 IN |
| Availability | Available for sale |
| Inventory count | Not advertised |
| diameter | 4 IN 6 IN 8 IN |
| height | 2 IN 3 IN |
| Made in | USA |
Printable Spec Sheet
Can I use start collar for residential jobs?
Review local code requirements and the published measurements before installation.
Does the selected variant change the SKU?
Yes. The SKU line above updates with the selected dropdown combination.
Can I order more than one?
Use the quantity stepper before adding the item to the cart.