Value Collection 57531061 Galvanized 90 Degree Stack Boot

Product Description

The VALUE COLLECTION 57531061 is a galvanized steel 90-degree stack boot designed for use in residential and light commercial HVAC duct systems. This fitting connects vertical duct runs to floor or wall register openings, transitioning airflow at a 90-degree angle. The boot features a 6-inch inside diameter opening and a 3-1/4-inch wide by 10-inch long collar, making it compatible with standard rectangular floor register applications. Fabricated from galvanized steel at standard gauge, it provides corrosion resistance suited to supply-air duct systems. HVAC sheet metal installers and duct fabricators are the primary trade installing this fitting.

This stack boot is commonly used in forced-air heating and cooling systems where supply duct branches drop vertically through floor joists and terminate at floor-mounted registers. The 90-degree turn allows a round duct to transition into a flat-lying boot that sits beneath a standard floor grille. The 3-1/4-inch width fits the most common floor register slot dimension used in residential construction, and the 10-inch length accommodates a wide range of standard register sizes in new construction and retrofit duct work.

Key Features

• 6-inch inside diameter inlet accepts standard 6-inch round duct branch
• 90-degree stack boot configuration transitions vertical duct runs to horizontal floor register openings
• 3-1/4-inch wide by 10-inch long collar fits standard residential floor register slots
• Galvanized steel construction provides corrosion resistance for supply-air applications
• Standard gauge fabrication suitable for residential and light commercial forced-air systems

Compatibility

Designed as an OEM-style replacement or new-installation fitting for residential forced-air HVAC duct systems using 6-inch round branch ducts and standard 3-1/4-inch by 10-inch floor registers.

Installation Notes

Installation is performed by licensed HVAC technicians or sheet metal duct installers. Shut down the air handler and confirm the system is de-energized before working on any supply or return duct branch. Secure the boot to the round duct with sheet metal screws and seal all joints with UL-listed duct sealant or foil tape per local mechanical code requirements. Do not use standard cloth duct tape as a permanent duct seal.