20" x 8" Trunk Start Collar

Maintain Efficient Airflow – Lukjan Straight Start Collar Built for Reliable Duct Connections

The Lukjan Straight Start Collar is engineered to deliver precise and secure transitions between trunk ducts and branch lines, supporting consistent airflow throughout HVAC systems. This 20" x 8" collar is manufactured for durability and accuracy, making it an essential component for new installations or system retrofits in residential and commercial environments.

Constructed from galvanized steel and designed to meet demanding field conditions, this collar ensures long-lasting performance and dependable results on every project. Its straightforward configuration reduces installation time while maintaining the integrity of duct connections.

Advantages of the Lukjan Straight Start Collar

• Heavy-Duty Galvanized Steel – Resists deformation and corrosion, ensuring extended service life.
• Accurate Fit – Sized for standard duct connections to prevent leakage and maintain airflow efficiency.
• Contractor-Ready Design – Simplifies installation in a range of applications without compromising performance.
• Consistent Airflow – Provides a tight, stable connection that minimizes resistance across the system.

Technical Data

• Nominal Size: 20 inches x 8 inches
• Material: Galvanized steel
• Connection Type: Straight collar for trunk-to-branch duct transitions
• Application: Suitable for standard pressure residential and light commercial HVAC systems

Installation Considerations

Although the Lukjan Straight Start Collar is designed for straightforward application, proper alignment and sealing are critical to system performance. It is recommended that installation be performed by a licensed HVAC professional to ensure compliance with mechanical codes and manufacturer guidelines. Seal all joints with approved mastic or tape to prevent air loss.

Contractor Notes

The Lukjan Straight Start Collar is a proven solution for field installations where precision and reliability are required. Its rugged construction and standard sizing reduce callbacks, making it a dependable choice for demanding job sites.

Conclusion

For projects requiring durable duct transitions and consistent airflow, the Lukjan Straight Start Collar delivers dependable performance. Built to professional standards, it is a practical and efficient choice for contractors who value long-term reliability.