3-1/4" x 10" 90 Degree Wall Stack Elbow, Flat

Specifications – Lukjan Broadway Stack Elbow, Series 290

The Lukjan Broadway Stack Elbow, Series 290 is a precision-formed HVAC duct fitting designed for efficient directional changes in vertical stack duct systems. Its 90-degree broadway design provides a smoother airflow transition compared to shortway fittings, helping reduce turbulence and pressure loss. Built from durable galvanized steel, it ensures long-lasting performance in both residential and commercial HVAC applications.

Key Features

• Series: 290
• Type: Broadway Stack Elbow
• Configuration: 90-degree directional change
• Material: Galvanized steel for corrosion resistance and structural integrity
• Design: Broadway radius construction for improved airflow and reduced resistance

Dimensions

• Elbow Angle: 90 degrees
• Length: 10 inches
• Width: 3-1/4 inches
• Form: Broadway radius design (longer sweep than shortway elbows)

Applications

• Residential and commercial HVAC duct systems
• Designed for stack transitions requiring a smooth 90-degree turn
• Helps minimize static pressure losses in ductwork
• Ideal for both new installations and retrofits

Compliance & Standards

• Manufactured in accordance with SMACNA standards
• Galvanized finish provides protection against rust and corrosion
• Meets industry requirements for HVAC duct fittings

Summary

The Lukjan Broadway Stack Elbow, Series 290 is a high-quality HVAC fitting engineered for 90-degree stack transitions. With its 10-inch length and 3-1/4-inch width, the broadway radius design promotes efficient airflow, reduces pressure drop, and ensures durability and compliance with SMACNA standards.