Southwark Metal 27R_4X10X5 Sheet Metal Pipe Boot 4x10x5

Product Description

The SOUTHWARK METAL 27R_4X10X5 is a straight sheet metal pipe boot designed to transition from round duct to a rectangular register opening in residential and light commercial HVAC supply systems. Constructed from hot dip galvanized steel, this boot measures 4 inches by 10 inches at the register end and accepts a 5-inch diameter round collar at the duct connection. It meets ACCA and SMACNA standards for sheet metal ductwork fabrication. HVAC sheet metal installers and duct mechanics use this fitting to terminate supply air runs at floor, wall, or ceiling register locations where a clean, square transition is required.

This pipe boot is suited for new construction and retrofit duct installations in residential forced-air systems and light commercial applications. It connects a 5-inch round supply trunk or branch duct to a standard 4 by 10 inch register opening. The straight configuration keeps the transition direct and low-profile, making it a common choice for floor and sidewall register drops where clearance is limited. Compatible with standard 4 by 10 inch floor and wall registers.

Key Features

• Hot dip galvanized steel construction resists corrosion in attic, crawlspace, and slab installations
• Straight register-type boot for direct round-to-rectangular transitions
• 4 inches by 10 inches rectangular register opening fits standard residential register sizes
• 5-inch diameter round collar end connects directly to branch duct
• Fabricated to ACCA and SMACNA standards for duct system performance and air tightness

Compatibility

Designed as an OEM-style sheet metal fitting for residential and light commercial forced-air supply duct systems terminating at standard 4 by 10 inch register openings with a 5-inch round duct connection.

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 and close the system before cutting into existing ductwork. Secure the boot to the round duct with sheet metal screws and seal all joints with UL 181-listed mastic or foil tape to maintain system air tightness. Ensure the register opening aligns flush with the finished floor, wall, or ceiling surface before fastening the register grille.

Technical Specifications

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

Standard Information

• Brand: SOUTHWARK METAL
• Manufacturer Part Number: 27R_4X10X5