Value Collection 57521261 Galvanized 90 Degree Stack Boot 6 in

Product Description

The VALUE COLLECTION 57521261 is a galvanized steel 90-degree stack boot designed for residential and light commercial duct systems. This fitting transitions from round duct to a rectangular floor or wall register opening, directing conditioned air from vertical stack duct into a living space. The fitting features a 6-inch inside diameter round inlet and a 2.25-inch wide by 12-inch long rectangular outlet. Fabricated from galvanized steel at standard gauge, it resists corrosion in typical HVAC duct environments. HVAC installers and sheet metal contractors use this boot when roughing in forced-air systems or replacing damaged fittings during service calls.

This stack boot is suited for residential forced-air heating and cooling applications where a 6-inch round duct feeds a floor or baseboard register. It is commonly installed in new construction and retrofit projects where space constraints require a 90-degree transition from a vertical duct run to a horizontal register face. The rectangular outlet accommodates standard 2.25-inch by 12-inch floor registers. Overall height of the fitting is 5.5 inches, which factors into rough-in clearance planning inside wall cavities or floor joist bays.

Key Features

• 6-inch inside diameter round inlet accepts standard 6-inch round duct
• 2.25-inch by 12-inch rectangular outlet fits standard floor register openings
• 90-degree stack boot configuration for vertical-to-horizontal duct transitions
• Galvanized steel construction resists corrosion in conditioned-air duct systems
• Standard gauge sheet metal for residential and light commercial duty
• 5.5-inch overall height supports typical wall cavity and joist bay installations

Compatibility

Designed as an OEM-style replacement or new-installation fitting for residential and light commercial forced-air duct systems requiring a 6-inch round-to-rectangular 90-degree stack boot transition.

Installation Notes

Installation is performed by licensed HVAC technicians or qualified sheet metal contractors. Shut down and lock out the air handler or furnace before cutting into or modifying existing ductwork. Secure the boot to the round duct collar with sheet metal screws and seal all joints with UL-listed foil tape or mastic sealant per local mechanical code requirements. Verify register opening dimensions before cutting the floor or wall to confirm the 2.25-inch by 12-inch outlet aligns with the register frame.