9" x 7" Smoke Pipe Duct Increaser/Reducer, Tapered, 26GA

Lukjan 9" x 7" Smoke Pipe Duct Increaser/Reducer – Professional HVAC Fitting

The Lukjan 9" x 7" Smoke Pipe Duct Increaser/Reducer is engineered for precise transitions in duct systems where two different diameters must be joined. Built from contractor-grade materials, this fitting supports balanced airflow and system efficiency while maintaining compliance with industry standards.

Product Advantages

• Heavy-Duty Galvanized Steel: Fabricated from 26-gauge galvanized steel, providing durability and corrosion resistance.
• Efficient Tapered Design: Smooth diameter transition helps maintain airflow velocity and minimize static pressure loss.
• Standardized Dimensions: Machine-formed for uniformity, ensuring consistent sizing and a secure fit.
• ASTM Compliance: Manufactured to ASTM-A653 CS Type B with G-30 coating for lock-forming quality.
• Versatility: Applicable in residential and light commercial HVAC duct installations.

Technical Specifications

• Material: Galvanized steel
• Gauge: 26 ga
• Nominal Sizes: 9" to 7"
• Length: 5 inches
• Coating: G-30 per ASTM-A653 CS Type B

Installation Notes

While this reducer is designed for straightforward integration, correct installation is critical to maintaining airflow and system efficiency. Connections should be properly sealed with approved materials to prevent air leakage. A licensed HVAC installer is recommended to ensure compliance with local codes and specifications.

For Contractors

The Lukjan 9" x 7" Increaser/Reducer offers reliability and ease of installation on job sites. Its consistent sizing and durable construction reduce installation time and ensure long-term performance.

For Skilled Installers

Capable DIYers can install this component with the proper sheet metal tools, fasteners, and sealants. Accuracy in measurement and secure fastening are required to achieve professional-grade results.

Reliable Airflow Solutions

Engineered for strength, precision, and performance, the Lukjan 9" x 7" Smoke Pipe Duct Increaser/Reducer provides an essential solution for duct transitions. Built to withstand demanding HVAC environments, it ensures your system maintains airflow efficiency and durability.