Lukjan OB7207CO 7 in Round to Oval Straight Boot Crimp

Product Description

The LUKJAN OB7207CO is a 7-inch round-to-7-inch oval straight boot with a crimped end, designed for use in sheet metal duct systems. This fitting transitions airflow from a round duct collar to an oval duct run in a straight-line configuration. The crimped end allows it to slip directly into an adjoining duct section without additional fasteners during initial fit-up. HVAC sheet metal installers and duct fabricators use this boot where round supply or return duct lines need to connect to oval duct runouts in residential and light commercial systems.

This fitting is suited for new construction and retrofit duct installations where space constraints favor oval duct runs off a round main. The straight boot orientation keeps the transition direct and compact, making it a common choice in tight ceiling, crawlspace, and wall cavity applications. Sheet metal contractors and HVAC installers typically use this component during rough-in work when laying out trunk-and-branch or radial duct systems.

Key Features

• 7-inch round inlet transitions to a 7-inch oval outlet in a straight configuration
• Crimped end allows for quick slip-fit connection into adjoining duct sections
• Straight boot orientation supports compact, direct duct routing in confined spaces
• Sized for residential and light commercial HVAC duct systems

Compatibility

Designed as an OEM-style sheet metal fitting for residential and light commercial HVAC duct systems using 7-inch round-to-oval straight boot configurations.

Installation Notes

Installation is performed by licensed HVAC technicians or qualified sheet metal workers. Power down the air handling unit and close the system dampers before making duct connections. Secure the boot to adjoining duct sections with sheet metal screws and seal all joints with UL 181-rated duct sealant or approved foil tape per local mechanical code requirements. Do not compress or deform the oval outlet during installation, as this will restrict airflow.

Technical Specifications

• Round Inlet Size: 7 inches
• Oval Outlet Size: 7 inches
• Boot Style: Straight
• End Type: Crimped
• Category: HVAC Duct Fittings

Standard Information

• Brand: LUKJAN
• Manufacturer Part Number: OB7207CO