Southwark Metal 27R_4X14X7 Duct Boot 4x14x7 Rect to Round

Product Description

The SOUTHWARK METAL 27R_4X14X7 is a straight rectangular-to-round sheet metal duct boot used to transition from a rectangular duct opening to a round collar at the register or grille. Fabricated from hot-dipped galvanized steel, this boot offers corrosion resistance suitable for residential and light commercial forced-air systems. The rectangular face measures 4 inches by 14 inches, and the round collar measures 7 inches in diameter. HVAC installers use this fitting to connect supply ductwork to floor, wall, or ceiling register openings where a straight-pattern boot is required. It meets ACCA and SMACNA standards for sheet metal duct construction.

This duct boot is designed for supply air distribution in residential and light commercial forced-air HVAC systems. It is installed where a rectangular register box connects to a round branch duct. The straight configuration is common in floor installations and in wall applications where the duct runs perpendicular to the register face. The 4-by-14-inch opening accepts standard 4 x 14 register grilles, and the 7-inch round collar connects to matching round duct or flexible duct. No specific system model compatibility data was provided.

Key Features

• Hot-dipped galvanized steel construction for corrosion resistance in conditioned-air applications
• Straight register-pattern boot for direct rectangular-to-round transitions
• 4 inches by 14 inches rectangular face accepts standard 4 x 14 register grilles
• 7-inch diameter round collar for connection to round or flexible branch duct
• Fabricated to ACCA and SMACNA standards for sheet metal duct fittings

Compatibility

Designed as an OEM-style replacement or new-installation fitting for residential and light commercial forced-air duct systems requiring a straight rectangular-to-round boot with a 4 x 14 inch register opening and a 7-inch round collar.

Installation Notes

Installation is performed by licensed HVAC technicians or sheet metal installers. Power down the air handler and close the system before cutting into or modifying ductwork. Secure the boot to the duct collar using sheet metal screws and seal all joints with UL 181-rated mastic or foil tape per SMACNA and local mechanical code requirements. Confirm register rough-in dimensions match the 4 x 14 inch face opening before cutting the subfloor or wall cavity.

Technical Specifications

• Material: Hot-Dipped Galvanized Steel
• Rectangular Face Size (Size A): 4 inches x 14 inches
• Round Collar Diameter (Size B): 7 inches
• Boot Type: Straight, Register, Rectangular to Round
• Applicable Standards: ACCA, SMACNA

Standard Information

• Brand: SOUTHWARK METAL
• Manufacturer Part Number: 27R_4X14X7