Southwark Metal PH46128 Duct Boot 6x12 to 8 Inch 30 Gauge

Product Description

The SOUTHWARK METAL PH46128 is a 90-degree rectangular-to-round sheet metal duct boot designed for transitioning airflow from rectangular duct runs to round register openings in residential and light commercial HVAC systems. The boot features a 6 x 12 inch rectangular inlet (Size A) and an 8-inch round collar (Size B). Body material is 30-gauge ASTM A653 CS Type B G40 hot-dip galvanized steel, with a heavier 28-gauge collar for added rigidity at the register connection point. This fitting is installed by licensed HVAC technicians and sheet metal mechanics during new construction and retrofit ductwork projects.

This duct boot is suited for forced-air supply systems where a floor, wall, or ceiling register is terminated at a right-angle transition. The 90-degree configuration makes it practical for installations where the duct run must turn and connect directly to a register face without additional fittings. The galvanized steel construction resists corrosion in conditioned and unconditioned spaces. Compliance with ACCA, SMACNA, and NATE applicable standards supports use in code-inspected residential and commercial duct systems.

Key Features

• 90-degree rectangular-to-round configuration transitions a 6 x 12 inch rectangular duct to an 8-inch round collar
• Body fabricated from 30-gauge ASTM A653 CS Type B G40 hot-dip galvanized steel for corrosion resistance
• 28-gauge galvanized steel collar provides added strength at the register connection
• Meets applicable standards set by ACCA, SMACNA, and NATE for ductwork fabrication and installation
• Designed for use with standard register and grille sizes in forced-air supply applications

Compatibility

Designed as an OEM-style sheet metal duct fitting for forced-air HVAC supply systems requiring a 90-degree rectangular-to-round register boot transition at a 6 x 12 inch to 8-inch connection point.

Installation Notes

Installation should be performed by a qualified HVAC technician or sheet metal mechanic in accordance with SMACNA duct construction standards and local mechanical codes. Power down the air handling unit before connecting or sealing ductwork. Seal all joints with approved duct mastic or UL 181-listed tape to meet energy code requirements. Secure the boot to the register opening and duct section using sheet metal screws at the collar and rectangular inlet.

Technical Specifications

• Type: 90 Degree Rectangular to Round Register Boot
• Size A (Rectangular Inlet): 6 x 12 inches
• Size B (Round Collar): 8 inches
• Body Material Thickness: 30 Gauge
• Collar Material Thickness: 28 Gauge
• Material: ASTM A653 CS Type B G40 Hot-Dip Galvanized Steel
• Applicable Standards: ACCA, SMACNA, NATE

Standard Information

• Brand: SOUTHWARK METAL
• Manufacturer Part Number: PH46128