8" x 8" Ceiling Register Box with 6" Round Collar, Galvanized Steel HVAC Duct Boot for Ceiling Registers and Diffusers

Reliable HVAC Ceiling Register Box for 6" Round Duct Connections ✔This 8" x 8" HVAC ceiling register box is designed to create a clean transition between a 6" round duct and a square ceiling register or diffuser opening. It is a practical solution for ceiling vent installations, duct replacements, attic ductwork, basement finishing, and remodeling projects. ✔Made from 26-gauge galvanized steel, the duct boot helps resist corrosion and maintain its shape during handling and installation. The 6" round collar works with compatible flexible or rigid round duct, while the square register box helps connect ductwork to ceiling vents in a neat, professional way. ✔A full perimeter plaster ground flange helps support secure placement and a cleaner finish around drywall or ceiling openings. The simple metal construction makes it suitable for both professional HVAC installers and experienced DIY users. ✔Please confirm your required box size, ceiling opening, register or diffuser size, and duct diameter before ordering. This unit is designed for 8" x 8" ceiling register or diffuser openings and 6" round duct connections.

• 26-Gauge Galvanized Steel Construction - Built from 26-gauge galvanized steel to help resist corrosion and maintain its shape during handling and installation. A practical choice for residential and light commercial HVAC duct transitions.
• 8" x 8" Box with 6" Round Collar - Designed for 8" x 8" ceiling register or diffuser openings and 6" round duct connections. Please measure your ceiling opening and duct diameter before ordering to confirm proper fit.
• Clean Duct-to-Ceiling Transition - Converts a 6" round duct to a square ceiling register box, helping create a neat connection between ductwork and ceiling vents. Works with compatible flexible or rigid round duct.
• Perimeter Flange for Secure Finishing - The full perimeter plaster ground flange helps seat the box securely and supports a cleaner drywall or ceiling finish around the vent opening.
• For HVAC Installation & Remodel Projects - Suitable for ceiling vent, supply air, or return air applications where the listed dimensions match. Useful for new installs, replacements, attic ductwork, basement finishing, and remodeling jobs.