Metalcraft 273106 Wallstack Boot 10x3.25 in 6 in Duct

Product Description

The METALCRAFT 273106 is a 27 Series wallstack boot designed to transition from a 6-inch round duct to a standard floor or wall register opening. Fabricated from 30-gauge hot-dipped galvanized steel, it features a 90-degree bend angle that routes conditioned air from a vertical or horizontal duct run to a wall-mounted register face. The register opening measures 10 inches in length by 3.25 inches in width, matching common residential and light-commercial register sizes. HVAC installers use this boot as a terminal fitting in forced-air duct systems, placing it at the end of a branch run to deliver supply air to a room.

This wallstack boot is suited for residential and light-commercial forced-air heating and cooling applications. It is typically installed in wall cavities or floor-to-wall transitions where a 6-inch branch duct feeds a 10 x 3.25-inch register opening. The 90-degree configuration makes it practical for runs that change direction at the point of discharge. This fitting is not insulated, so it is intended for conditioned interior spaces rather than unconditioned attic or crawl space runs where duct wrap would otherwise be required.

Key Features

• Hot-dipped galvanized steel construction resists corrosion in typical HVAC duct environments
• 30-gauge steel provides standard sheet-metal rigidity for residential duct systems
• 90-degree bend angle routes airflow from duct run to wall or floor register face
• 10-inch by 3.25-inch register opening fits common residential supply register sizes
• Compatible duct diameter of 6 inches matches standard residential branch duct sizing
• Non-insulated design suited for interior conditioned-space installation

Compatibility

Designed as an OEM-style replacement or new-construction fitting for residential forced-air supply duct systems using 6-inch round branch ducts and 10 x 3.25-inch wall or floor registers.

Installation Notes

Installation should be performed by a qualified HVAC technician in accordance with local mechanical codes and SMACNA duct construction standards. Power down the air handler and close the system before connecting or sealing the boot to the branch duct. Seal all joints with listed duct mastic or UL 181-rated tape to prevent conditioned air loss. Secure the fitting to the wall framing or floor deck as required to support the register face and prevent movement.