Southwark Metal 28R_4X10X5 Sheet Metal Pipe Boot Register

Product Description

The SOUTHWARK METAL 28R_4X10X5 is a center-end sheet metal pipe boot designed to transition from a rectangular duct opening to a round pipe connection. Fabricated from hot dip galvanized steel, this boot provides corrosion resistance suited to HVAC duct systems in both residential and light commercial applications. The rectangular opening measures 4 inches by 10 inches, and the round collar is 5 inches in diameter. It meets ACCA and SMACNA fabrication standards, making it appropriate for installations where documented compliance is required. HVAC sheet metal mechanics and duct installers are the typical tradespeople who specify and install this fitting.

This pipe boot is used where a rectangular floor or ceiling register opening must connect to a round branch takeoff in a forced-air supply or return duct system. The center-end configuration positions the round collar at the center of the end panel, which suits typical residential supply boot layouts. It is installed at the termination point of a branch duct run, directly beneath or adjacent to a floor or wall register grille.

Key Features

• Hot dip galvanized steel construction for corrosion resistance in HVAC duct environments
• Rectangular opening: 4 inches by 10 inches to match standard register cutout sizes
• Round collar: 5 inches in diameter for connection to round branch duct or flex duct
• Center-end configuration for standard floor and ceiling register boot layouts
• Compliant with ACCA and SMACNA standards for sheet metal ductwork fabrication

Compatibility

Designed as an OEM-style replacement or new-construction fitting compatible with standard 4-inch by 10-inch register openings and 5-inch round branch duct connections in residential and light commercial forced-air HVAC systems.

Installation Notes

Installation is performed by licensed HVAC mechanics or sheet metal duct installers. Power down the air handling unit and close the system dampers before modifying or connecting duct sections. Seal all joints with UL 181-rated mastic or foil tape per SMACNA guidelines to prevent air leakage. Secure the boot to the subfloor or framing with appropriate sheet metal screws before attaching the register grille.

Technical Specifications

• Material: Hot Dip Galvanized Steel
• Rectangular Opening (Size A): 4 inches x 10 inches
• Round Collar Diameter (Size B): 5 inches
• End Direction: Center
• Type: Register
• Applicable Standards: ACCA, SMACNA

Standard Information

• Brand: SOUTHWARK METAL
• Manufacturer Part Number: 28R_4X10X5