12" Long Metal Tab Collar

Lukjan Round Takeoff – Series T27, Precision Duct Connection

The Lukjan Series T27 Round Takeoff is engineered for clean, accurate transitions from rectangular trunk ducts to round branch runs. Fabricated from galvanized steel with G-30 lock-forming quality, this component provides contractors with a durable, code-compliant solution that supports system efficiency and balanced airflow.

Key Advantages

• Factory-Formed Fit: Ensures consistent sizing for reliable field installation.
• Galvanized Steel Construction: Manufactured for strength, corrosion resistance, and long service life in HVAC systems.
• Reduced Leakage: Designed to minimize air loss at connections, supporting proper system performance.
• Versatile Application: Suitable for residential and light commercial projects requiring dependable branch takeoffs.

Technical Specifications

• Diameter: 12 inches
• Length: 5-7/8 inches
• Material: Galvanized steel with G-30 coating
• Standard: Meets ASTM-A653 CS Type B requirements

Installation Notes

The Series T27 takeoff installs using standard sheet metal tools. For best performance, connections should be fastened with screws or drive cleats and sealed with duct mastic or UL-listed tape. Installation by a licensed HVAC professional is recommended to ensure compliance with SMACNA guidelines and local building codes.

For Contractors

The Lukjan Round Takeoff provides a rugged, jobsite-ready solution that saves time during installation and delivers consistent results. Its durable steel construction and uniform sizing reduce rework, making it a reliable choice for professional HVAC system design and installation.