8" x 7" Duct Board Tab Collar with Damper

8" x 7" Duct Board Tab Collar with Damper – Professional HVAC Airflow Control

The 8" x 7" Duct Board Tab Collar with Damper is engineered to deliver dependable airflow regulation and secure duct board connections. Built for professional-grade performance, this collar provides the strength and precision required for long-term reliability in commercial and residential HVAC systems.

Key Professional Advantages

• Heavy-Duty Construction: Manufactured from galvanized 30 gauge steel with G-30 coating for strength and corrosion resistance.
• Integrated Damper: Factory-installed damper allows precise air balancing, improving overall system efficiency.
• Fast Installation: Tab collar design folds securely into duct board, reducing setup time and ensuring airtight connections.
• System Compatibility: Sized to industry standards for use in a wide range of HVAC layouts.
• Job-Site Ready: Designed for consistent performance under demanding installation conditions.

Technical Specifications

• Opening Size: 8 inches diameter
• Length: 7 inches
• Material: Galvanized steel, 30 ga
• Coating: G-30 protective finish
• Standard Compliance: ASTM-A653 CS Type B

Installation Guidance

The collar installs by folding tabs into duct board and sealing per SMACNA standards. While straightforward for seasoned installers, correct alignment and sealing are critical to achieving full performance. For best results, professional installation is recommended to ensure compliance with local mechanical codes and prevent leakage issues.

For Contractors and Experienced Installers

Contractors: Built to withstand job site demands, this collar saves time on installs while maintaining airtight reliability. The integrated damper simplifies balancing, reducing the need for additional components.

Skilled DIYers: With proper tools—sheet metal snips, duct sealant, and a crimping tool—this collar can be installed securely. Attention to sealing methods is key to prevent energy loss.

Performance Features

• Precision Formed Tabs: Consistent machine-formed edges ensure reliable fit and performance.
• Corrosion Resistance: G-30 galvanized coating extends service life under demanding conditions.
• Integrated Airflow Control: Damper provides balanced distribution without added hardware.

Engineered for Dependable HVAC Performance

The 8" x 7" Duct Board Tab Collar with Damper combines robust construction, compliance, and airflow precision. Whether for new installations or retrofit projects, this collar is built to meet the expectations of professional HVAC contractors while ensuring long-term system efficiency.