5" x 4" Smoke Pipe Duct Increaser/Reducer, Tapered, 26GA

5" x 4" Smoke Pipe Duct Increaser/Reducer – Built for Precision and Durability

The 5" x 4" Smoke Pipe Duct Increaser/Reducer is engineered to deliver reliable transitions in HVAC ducting, maintaining proper airflow and system efficiency. Designed for demanding environments, it provides a secure connection when adapting from 5-inch to 4-inch round ducts, ensuring ventilation systems operate as intended.

Key Features

• Durable Galvanized Steel: Manufactured from 28-gauge galvanized steel for corrosion resistance and long service life.
• Accurate Fit: Machine-formed ends provide consistent sizing, reducing installation errors and ensuring a secure connection.
• Efficient Transitions: Tapered reducer design supports smooth airflow, minimizing pressure loss across the joint.
• Industry Standard: Fabricated to ASTM-A653 CS Type B specifications for compliance with HVAC ductwork requirements.

Technical Specifications

• Material: Galvanized steel
• Gauge: 28
• Size: 5-inch to 4-inch diameter transition
• Length: 5 inches
• Manufacture: Coil-fed automated production for consistency

Installation Notes

The increaser/reducer is designed for straightforward installation, but proper sealing and fastening are essential to maintain airflow integrity. For best results, use sheet metal screws and UL-rated duct sealant or tape to ensure a tight, code-compliant fit. Professional installation is recommended to guarantee performance and system efficiency.

Contractor Application

For Professionals: Built to handle the requirements of job sites, this reducer maintains durability under frequent handling and installation. Its standardized sizing reduces time spent adjusting components, ensuring efficiency during system builds or retrofits.

For Skilled DIYers: With the correct tools (aviation snips, drill, and fasteners), this fitting can be installed by experienced homeowners. However, accuracy in sealing and securing joints is critical to prevent system inefficiencies.

Performance You Can Rely On

The 5" x 4" Smoke Pipe Duct Increaser/Reducer is a professional-grade fitting designed to keep HVAC systems operating at peak performance. Its galvanized construction, precise sizing, and tapered transition make it a dependable choice for both residential and commercial ductwork projects.