4" x 8" Trunk Duct Adapter

Lukjan Duct Trunk Reducer – Heavy-Duty Galvanized Steel Transition Fitting

The Lukjan Duct Trunk Reducer is engineered to provide a secure and efficient transition between different duct sizes in HVAC trunk lines. Built from durable galvanized steel, this reducer is designed to maintain airflow balance and minimize system resistance, ensuring long-term performance in both residential and commercial installations.

Key Advantages

• Efficient Airflow Transition: Reduces duct size while preserving proper air distribution throughout the system.
• 28-Gauge Galvanized Steel: Provides durability, corrosion resistance, and compliance with industry standards.
• Fabricated for Precision Fit: Manufactured to consistent tolerances, simplifying installation and reducing the need for field modifications.
• Standard Connection Type: Designed for S and drive cleat connections (cleats sold separately).
• Versatile Use: Suitable for trunk reductions in supply or return ductwork across a wide range of HVAC applications.

Technical Specifications

• Material: Galvanized steel
• Gauge: 28
• Dimensions: 4" x 8"
• Connection Type: S and drive cleat (industry standard)

Installation Guidance

Installation of the Lukjan Duct Trunk Reducer should be completed using standard sheet metal tools and fastening methods. Proper sealing with duct sealant or approved tape is recommended to ensure system efficiency and prevent leakage. While straightforward for experienced installers, all work should follow local mechanical codes for compliance and safety.

Applications for Contractors

This reducer is manufactured to withstand job site demands, offering reliability and consistent performance for new system installations, retrofits, and service work. Its rugged galvanized construction ensures a long service life, making it a dependable component in professional HVAC projects.

Summary

The Lukjan Duct Trunk Reducer provides a durable, code-compliant transition for HVAC trunk lines. With galvanized steel construction, precise dimensions, and compatibility with standard cleat connections, it is a trusted choice for contractors who require efficient airflow management and long-lasting performance.