14" x 8" Trunk Start Collar

Reliable Duct Connections – Lukjan Straight Start Collar for HVAC Systems

The Lukjan Straight Start Collar is designed for secure and efficient transitions from trunk lines to branch ducts. Built from galvanized steel, this 14" x 8" collar provides the strength and precision required for professional HVAC installations in both residential and commercial applications.

Its durable construction supports system integrity by minimizing air leakage and maintaining airflow efficiency. Manufactured to consistent dimensions, it ensures proper fit and dependable performance in sheet metal duct systems.

Advantages of the Lukjan Straight Start Collar

• Durable Construction – Fabricated from galvanized steel for long service life under demanding conditions.
• Accurate Sizing – Engineered to fit standard duct dimensions, reducing installation errors.
• Leak Prevention – Provides a tight connection that maintains airflow balance and efficiency.
• Professional Application – Suitable for residential and light commercial HVAC projects.
• Corrosion Resistance – Built to withstand normal HVAC operating environments.

Technical Specifications

• Nominal Size: 14" x 8"
• Material: Galvanized steel
• Application: Straight start collar for trunk-to-branch connections
• Compatibility: Standard HVAC duct systems

Installation Notes

Installation should be performed by licensed HVAC professionals to ensure compliance with mechanical codes and system design requirements. Proper fastening and sealing methods are critical to avoid leakage and maintain efficiency. Sealant or approved tape should be applied per project specifications.

Contractor Applications

The Lukjan Straight Start Collar is intended for use in new construction and retrofit duct systems. Its rugged build and consistent sizing make it a dependable component for contractors who require reliable airflow management and long-term durability.

Conclusion

The Lukjan Straight Start Collar provides strength, accurate fit, and dependable performance in HVAC installations. Engineered for professional use, it ensures efficient airflow and lasting reliability in trunk-to-branch duct connections.