Lukjan rb302125 90 Degree Perimeter Register Boot

Product Description

The LUKJAN rb302125 is a 90-degree elbow register boot designed to transition a 5-inch round duct into a 2-1/4-inch by 12-inch rectangular perimeter register opening. This stamped sheet metal boot makes the directional turn required at floor or wall perimeter installations, connecting round branch ductwork to a flat register face. It is precision-formed for consistent dimensional fit and is installed by HVAC technicians and sheet metal mechanics in residential forced-air heating and cooling systems. The 90-degree offset geometry keeps the boot flush at the perimeter plane while maintaining proper airflow alignment into the register.

This register boot is suited for residential and light commercial forced-air systems where a 5-inch round branch duct terminates at a floor, baseboard, or sidewall perimeter register. It accepts a standard 5-inch round collar on the duct side and aligns to a 2-1/4-inch by 12-inch register face on the outlet side. The 12-inch boot length accommodates typical floor joist or wall framing depths and provides adequate clearance for register installation and airflow distribution.

Key Features

• 90-degree elbow geometry transitions 5-inch round duct to a 2-1/4-inch x 12-inch perimeter register opening
• 12-inch boot length accommodates standard floor joist framing depths
• Precision-formed sheet metal construction for consistent dimensional fit
• Sub-type elbow register boot design supports proper airflow direction at perimeter outlets
• Lightweight at 0.5 pounds for ease of handling and installation

Compatibility

Designed as an OEM-style replacement or new-installation register boot for residential and light commercial forced-air systems using 5-inch round branch ducts with 2-1/4-inch by 12-inch perimeter register openings.

Installation Notes

Installation is performed by licensed HVAC technicians or sheet metal mechanics. Shut down the air handler and close the disconnect before working in the duct system. Secure the boot to the round duct collar with sheet metal screws and seal all joints with UL-listed foil tape or mastic sealant per applicable mechanical codes. Verify the register face aligns flush with the finished floor or wall surface before fastening the register grille.