

Ships same day if ordered by 12 pm
Manufacturer pricing rules prevent us from advertising our discount — no account or email required to see it.
Secure Payments
Easy Returns
Expert Advice
Fast Shipping
The VALUE COLLECTION 57531261 is a galvanized steel 90-degree stack boot designed for residential and light commercial duct systems. It transitions from round duct to a floor or wall register opening, redirecting airflow at a 90-degree angle through a rectangular outlet. The boot features a 6-inch inside diameter round inlet and a 3-1/4-inch by 12-inch rectangular outlet face, making it a standard size for supply-air floor boot applications. Fabricated from galvanized steel at standard gauge, it resists corrosion in typical HVAC environments. HVAC installers and sheet metal contractors handle this fitting during new construction and system modification work.
This stack boot is suited for forced-air supply duct systems where a vertical duct stack feeds a floor or baseboard register. The 6-inch ID inlet connects directly to 6-inch round duct or collar takeoffs from a trunk line. The 3-1/4-inch by 12-inch rectangular outlet aligns with standard floor register openings of the same face size. It is commonly installed in residential construction, light commercial tenant improvements, and duct retrofit projects where floor-mounted registers are required.
Designed as an OEM-style replacement and new-installation fitting compatible with standard 6-inch round residential and light commercial forced-air supply duct systems using 3-1/4-inch by 12-inch floor registers.
Installation is typically performed by a licensed HVAC technician or sheet metal contractor. The air handling system should be powered down and the blower confirmed off before cutting into any existing ductwork. Sheet metal screws and UL 181-listed duct tape or mastic sealant are used to secure and seal the boot to the round duct inlet and the subfloor register opening. Local mechanical codes based on the IMC or SMACNA standards govern duct installation practices and should be consulted before work begins.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
Add install kit to cart
—
Thanks for subscribing!
This email has been registered!