Southwark Metal PH3L4126 Left End Register Boot 4x12x6

Product Description

The SOUTHWARK METAL PH3L4126 is a left end register boot designed for residential and light commercial duct distribution systems. This boot transitions from a round or rectangular duct run to a wall or floor register opening, directing conditioned air where it is needed. The PH3L4126 measures 4 x 12 x 6 inches and is built to the 28RL model configuration, indicating a left-end takeoff orientation. Sheet metal contractors and HVAC installers typically specify this boot during new construction or duct retrofit work where a left-side register termination is required.

This register boot is suited for low-velocity residential forced-air systems using standard trunk-and-branch duct layouts. The left-end configuration positions the register outlet on the left side of the boot, making it the correct choice when duct geometry or framing constraints require a left-side termination. Installers should verify the duct opening dimensions and register size match the 4 x 12 x 6 inch profile before ordering. Review the exact part number and orientation carefully, as right-end and straight configurations are separate SKUs.

Key Features

• Left-end register boot orientation for applications requiring a left-side duct termination
• 4 x 12 x 6 inch profile fits standard residential register and grille openings
• 28RL model code designation for accurate ordering and field identification
• Sold as a single unit for flexible quantity purchasing

Compatibility

Designed as an OEM-style sheet metal register boot for use in standard residential and light commercial forced-air duct systems where a 4 x 12 x 6 inch left-end boot configuration is specified.

Installation Notes

Installation is performed by licensed sheet metal contractors or HVAC technicians following SMACNA guidelines and local mechanical codes. Power down the air handling unit and close the disconnect before working in the duct system. Secure the boot to the duct trunk or branch with sheet metal screws and seal all joints with UL 181-rated mastic or foil tape to prevent air leakage. Confirm left-end orientation matches the field layout before fastening the register boot in place.