Gray 7″ Start Collar w/ Flange 6″ Long Crimped Galv MFG# 7-313FG-1

7″ Start Collar with Flange – 6″ Long – MFG# 7-313FG-1

This 7-inch galvanized start collar features a 6-inch extended body with flange and serrated ring for secure installation in round metal HVAC duct systems.

Designed for professional duct installations, the extended length provides additional engagement inside trunk lines or plenums, improving stability and airflow transition.

The flanged base allows secure mounting, while the crimped end ensures easy connection to 7″ round metal duct or flexible duct. The serrated ring enhances grip and helps maintain a tight mechanical fit.

Key Features:

• 7″ round starting collar

• 6″ extended body length

• Flanged base for secure mounting

• Serrated ring for improved grip

• Crimped end for fast duct connection

• Galvanized steel construction

• No pre-drilled holes (field customization)

Applications:

• Residential HVAC duct systems

• Commercial ventilation trunk lines

• Sheet metal duct fabrication

• Branch take-off installations

Built for HVAC professionals who require durable, long-body start collars for secure airflow connections.

Product details

Part / SKU	7-313FG-1

Package includes

• Gray 7" Start Collar w/ Flange 6" Long Crimped Galv MFG# 7-313FG-1

Included components and any stated pack quantity are as described in this listing. Optional accessories shown separately are sold separately unless expressly included above.