Southwark Metal 28R_4X12X8 Pipe Boot End 4x12 8 in

Product Description

The SOUTHWARK METAL 28R_4X12X8 is a center-end sheet metal pipe boot designed for connecting rectangular duct openings to round pipe in forced-air HVAC distribution systems. Fabricated from hot dip galvanized steel, this boot transitions a 4 inch x 12 inch register opening to an 8 inch diameter round collar. The center-end configuration positions the round collar at the center of the flat face, which suits straight-run floor or ceiling register installations where duct alignment is critical. HVAC sheet metal mechanics and duct installers use this fitting to terminate branch runs at register locations. It meets ACCA and SMACNA applicable standards for residential and light commercial ductwork fabrication.

This pipe boot end is suited for residential and light commercial forced-air systems where a 4 inch x 12 inch floor, ceiling, or wall register connects to an 8 inch round branch duct. The center-end orientation is the standard configuration for most straight-drop or straight-rise duct runs feeding a register box or boot cavity. Installers specify this fitting when replacing worn or damaged boots or when building out new duct distribution runs that require a code-compliant, SMACNA-conforming transition fitting.

Key Features

• Hot dip galvanized steel construction resists corrosion in unconditioned spaces such as crawlspaces, attics, and basements
• 4 inch x 12 inch rectangular register face matches one of the most common residential register sizes
• 8 inch diameter round collar connects directly to standard 8 inch round branch duct
• Center-end configuration supports straight-run floor, ceiling, and wall register installations
• Meets ACCA and SMACNA applicable standards for ductwork fabrication and installation

Compatibility

Designed as an OEM-style replacement or new-construction fitting compatible with 4 inch x 12 inch register openings and 8 inch diameter round duct in residential and light commercial forced-air HVAC systems conforming to ACCA and SMACNA standards.

Installation Notes

Installation should be performed by a licensed HVAC technician or qualified sheet metal mechanic in accordance with SMACNA duct construction standards and local mechanical codes. Power down the air handler or furnace at the disconnect before working inside the duct system. Secure the round collar to the branch duct with sheet metal screws and seal all joints with UL 181-listed mastic or foil tape per local code requirements. Do not use standard duct tape as a primary sealant on metal ductwork.

Technical Specifications

• Material: Hot Dip Galvanized Steel
• Register Face Size (Size A): 4 inches x 12 inches
• Round Collar Diameter (Size B): 8 inches
• End Direction: Center
• Type: Register
• Applicable Standards: ACCA, SMACNA

Standard Information

• Brand: SOUTHWARK METAL
• Manufacturer Part Number: 28R_4X12X8