Lukjan ox5405 5 Inch 90 Degree Oval Vertical Elbow Duct

Product Description

The LUKJAN ox5405 is a 5-inch 90-degree oval vertical elbow duct fitting designed for directional airflow transitions in residential and commercial HVAC duct systems. Fabricated from galvanized steel, it resists corrosion and holds up in both conditioned and unconditioned spaces. The oval profile allows the fitting to fit in tighter cavities compared to round duct of the same cross-sectional area, making it a practical choice in framed wall and floor joist installations. Licensed HVAC technicians and sheet metal installers use this type of fitting to change airflow direction while maintaining system static pressure balance.

This fitting is suited for supply or return trunk-to-branch transitions where a 90-degree directional change is required. The vertical orientation indicates the elbow transitions airflow in the vertical plane. At 5 inches, it is a common size in residential forced-air systems and light commercial applications. It is typically installed as part of a ducted distribution system connected to an air handler, furnace, or rooftop unit.

Key Features

• 90-degree turn angle for precise directional airflow routing
• Oval shape allows installation in space-constrained framing cavities
• Galvanized steel construction provides corrosion resistance and long service life
• Vertical elbow orientation for transitions in the vertical plane
• Smooth interior profile supports minimal airflow resistance through the bend

Compatibility

Designed as an OEM-style replacement or new-installation fitting for 5-inch oval duct systems in residential and light commercial forced-air HVAC applications.

Installation Notes

Installation should be performed by a licensed HVAC technician or qualified sheet metal installer in accordance with SMACNA duct construction standards and local mechanical codes. Power down the air handling equipment before working on the duct system. Secure all joints with approved fasteners and seal with UL-listed duct sealant or metal tape to prevent air leakage. Do not use standard cloth duct tape as a permanent sealant.