24" x 8" Trunk Start Collar

Lukjan Straight Start Collar – Precision Fit for Secure Duct Transitions

The Lukjan Straight Start Collar is engineered for direct connections between trunk duct and branch runs, ensuring efficient airflow and system reliability. Designed to meet professional standards, this component provides contractors with a dependable solution for both new installations and retrofit applications.

With heavy-duty galvanized construction and consistent factory sizing, the straight start collar delivers strength, accuracy, and a clean connection that minimizes leakage and maximizes efficiency.

Key Advantages of the Lukjan Straight Start Collar

• Heavy-Gauge Galvanized Steel – Built for long service life under demanding HVAC applications.
• Clean Transitions – Provides a tight, accurate fit that reduces air loss and supports system balance.
• Consistent Dimensions – Factory-formed collars ensure uniformity and simplified installation across multiple takeoffs.
• Versatile Application – Suitable for a range of residential and light commercial duct systems.
• Corrosion Resistance – Manufactured to resist wear in high-humidity or harsh conditions.

Technical Specifications

• Size: 20 in. x 8 in.
• Material: Galvanized steel
• Gauge: 28 ga (standard), with additional gauges available depending on project requirements
• Type: Straight start collar

Installation Notes

Installation of the Lukjan Straight Start Collar requires standard sheet metal tools and fastening methods such as screws or drive cleats. For best results, seal all joints with approved duct sealant or UL-listed tape to ensure proper system performance. While installation is straightforward, contractors should follow SMACNA standards and local code requirements for duct construction.

For Professional Contractors

The Lukjan Straight Start Collar is manufactured to streamline duct installation on job sites. Its consistent sizing and durable build reduce field adjustments, saving time and improving productivity. It integrates seamlessly with standard trunk and branch configurations, making it a reliable choice for commercial and residential projects alike.

Summary

Choose the Lukjan Straight Start Collar for a rugged, precise, and professional-grade duct connection solution. Designed to perform under jobsite conditions, this collar ensures reliable airflow and long-term system efficiency.