Southwark Metal 27R_4X12X8 Sheet Metal Pipe Boot Straight

Product Description

The SOUTHWARK METAL 27R_4X12X8 is a straight sheet metal pipe boot designed to transition a round duct to a rectangular floor or wall register opening. Constructed from hot dip galvanized steel, this boot provides corrosion resistance suited for residential and light commercial HVAC duct systems. The rectangular opening measures 4 inches by 12 inches and the round collar measures 8 inches in diameter. HVAC installers and sheet metal contractors use this fitting to connect round branch duct runs to standard register openings in supply air distribution systems. It meets ACCA and SMACNA applicable standards.

This pipe boot is used in forced-air heating and cooling systems where a round duct must terminate at a rectangular floor, ceiling, or wall register. The straight configuration suits installations where the duct approaches the register box from a direct angle without an offset. It is appropriate for new construction and replacement work in residential and light commercial settings where a 4 inch by 12 inch register opening and an 8 inch round collar are required.

Key Features

• Hot dip galvanized steel construction for corrosion resistance in supply air duct applications
• Straight register boot configuration for direct duct-to-register connections
• Rectangular opening: 4 inches by 12 inches to fit standard register sizes
• Round collar: 8 inches in diameter for connection to round branch duct
• Meets ACCA and SMACNA applicable standards

Compatibility

Designed as an OEM-style sheet metal fitting for residential and light commercial forced-air HVAC duct systems requiring a straight register boot with a 4 inch by 12 inch rectangular opening and an 8 inch round collar.

Installation Notes

Installation is typically performed by a licensed HVAC technician or sheet metal contractor following SMACNA duct construction standards. Power down the air handling unit and close the system before making duct connections. Secure the boot to the duct and register box with sheet metal screws and seal all joints with UL-listed foil tape or mastic sealant to prevent air leakage. Ensure the register opening framing is sized to accept the 4 inch by 12 inch face of the boot before installation.

Technical Specifications

• Material: Hot Dip Galvanized Steel
• Rectangular Opening (Size A): 4 inches x 12 inches
• Round Collar Diameter (Size B): 8 inches
• Type: Register, Straight
• Applicable Standards: ACCA, SMACNA

Standard Information

• Brand: SOUTHWARK METAL
• Manufacturer Part Number: 27R_4X12X8