14" Long Metal Tab Collar

Lukjan Series T27 Round Takeoff – Engineered for Precise Duct Transitions

The Lukjan Series T27 Round Takeoff is designed to provide a clean and accurate connection from rectangular trunks to round branch ducts. Built with galvanized steel and finished with a G-30 coating, this takeoff delivers the strength and consistency required for professional-grade HVAC installations. Its factory-formed construction ensures dependable sizing and compatibility across a wide range of duct applications.

Key Advantages

• Consistent Fit: Precision manufacturing allows for accurate alignment and reduced field modifications.
• Durable Galvanized Steel: Fabricated from heavy-duty steel with corrosion resistance for long service life.
• Optimized Airflow: Engineered to minimize leakage and support balanced system performance.
• Versatile Applications: Suitable for residential and light commercial ductwork configurations.

Technical Specifications

• Diameter: 12 inches
• Length: 5-7/8 inches
• Material: Galvanized steel with G-30 lock-forming quality
• Standard: Conforms to ASTM-A653 CS Type B

Installation Notes

For best results, install using mechanical fasteners such as drive cleats or sheet metal screws, followed by mastic or UL-approved tape to achieve an airtight seal. Installation should be completed in accordance with SMACNA standards and local mechanical codes. While straightforward, professional installation is recommended to ensure proper system performance and compliance.