6" x 3" Smoke Pipe Duct Increaser/Reducer, Tapered, 26GA

Lukjan 6" x 3" Smoke Pipe Duct Increaser/Reducer – Heavy-Duty HVAC Transition

The Lukjan 6" x 3" Smoke Pipe Duct Increaser/Reducer is designed for precise duct size transitions in heating and ventilation systems. Its tapered form and galvanized steel build provide consistent airflow management, making it suitable for residential and commercial HVAC applications.

Product Features

• Galvanized Steel Construction: Manufactured from 26-gauge galvanized steel for strength and corrosion resistance.
• Efficient Airflow Transition: Reduces turbulence when adapting from 6" down to 3", improving system balance.
• Uniform Fit: Machine-produced sizing ensures consistency across installations.
• Durability: G-30 lock-forming quality per ASTM-A653 CS Type B provides long-lasting service in demanding HVAC environments.
• Versatile Use: Applicable in retrofit, upgrade, or new system installations where precise duct transitions are required.

Technical Specifications

• Nominal Size: 6" x 3"
• Length: 5 inches
• Gauge: 26GA galvanized steel
• Design: Non-crimped, tapered reducer
• Standard: ASTM-A653 CS Type B with G-30 coating

Installation Guidance

This reducer is straightforward to integrate into ductwork but should be properly sealed and fastened to prevent air loss. While experienced technicians will find it efficient to install, we recommend professional handling to ensure compliance with local codes and optimal system performance.

Professional Application

For Contractors: Built to meet jobsite requirements, this reducer ensures a tight, durable fit with consistent performance. Its heavy-duty design reduces callbacks and improves system reliability.

For Skilled Installers: If installed outside of professional service, correct measurement, fastening, and sealing are critical to achieving maximum efficiency. Always follow safety and mechanical code requirements.

Reliable Transition for Professional HVAC Systems

The Lukjan 6" x 3" Smoke Pipe Duct Increaser/Reducer delivers dependable performance for airflow transitions, built with the quality materials and precision manufacturing that contractors require on every project.