10" x 8" Trunk Start Collar

Professional-Grade HVAC Performance – 10" x 8" Trunk Start Collar for Secure Duct Connections

Product Overview

The 10" x 8" Trunk Start Collar is engineered to provide a reliable transition between branch ductwork and the main trunk line in forced-air HVAC systems. Its sturdy construction ensures a tight connection that supports efficient airflow, reduces leakage, and contributes to long-term system performance.

Key Specifications

• Dimensions: 10 inches x 8 inches
• Material: Galvanized steel for strength and corrosion resistance
• Application: Duct-to-trunk connections
• System Suitability: Rated for standard residential and light commercial static pressures

Installation Guidance

Designed for straightforward use in the field, the trunk start collar is most effective when installed with proper sealing practices to prevent air loss. For best results:

• Use sheet metal screws to secure connections
• Apply approved duct sealant or mastic to eliminate leaks
• Verify alignment with the trunk line to maintain airflow efficiency
• Confirm compliance with applicable codes during installation

Contractor and Installer Notes

For Contractors: Built from durable galvanized steel, this collar holds up under job site conditions and repeated handling. It’s a reliable choice for ensuring airtight connections that reduce callbacks and improve system efficiency.

For Skilled Installers: While the collar can be installed with basic sheet metal tools, attention to sealing and fastening methods is essential. A properly fitted collar helps maintain system performance and extends duct system service life.

Summary

The 10" x 8" Trunk Start Collar is a dependable component for professional HVAC installations. With rugged construction and straightforward application, it delivers secure duct-to-trunk connections that support efficient, leak-free airflow in residential and light commercial systems.