5" Dovetail Start Collar — Galvanized Steel

This 5-inch dovetail start collar creates a round branch connection from duct board, plenums, or compatible flat duct surfaces to round HVAC ductwork. The integral dovetail tabs help secure the collar to the opening without requiring a separate mounting flange.

Constructed from galvanized steel, the collar provides a durable connection for residential and commercial HVAC supply-air and return-air systems. The round end connects to compatible 5-inch duct pipe or flexible duct.

Sizing Note: The 5-inch measurement identifies the nominal round duct connection diameter. Confirm the required opening and duct size before installation.

• Galvanized steel construction for durable HVAC installations
• 5-inch nominal round connection fits compatible round ductwork
• Integral dovetail tabs help secure the collar to the duct opening
• Creates a round branch connection from duct board or flat duct surfaces
• Beaded collar design adds strength and supports a secure connection
• Suitable for residential and commercial HVAC systems
• Compatible with round metal duct or properly secured flexible duct

• Product Type: Dovetail Start Collar
• Nominal Duct Diameter: 5"
• Material: Galvanized Steel
• Connection Shape: Round
• Attachment Type: Integral Dovetail Tabs
• Mounting Flange: Not Included
• Application: HVAC Branch Duct Connection
• Compatible Surfaces: Duct Board, Plenum, or Compatible Flat Duct Surface
• Product Code: SC05

Application: Designed to create a 5-inch round branch connection from duct board, plenums, or compatible flat duct surfaces.

Installation: Cut the properly sized opening, insert the dovetail end through the opening, and bend the tabs outward to secure the collar. Connect the round duct to the collar and fasten it using an installation method suitable for the duct type.

Sealing: Seal around the collar and connected duct as required to help reduce air leakage and maintain efficient airflow.