10 X 8 X 8" Register Duct Box, Galvanized Steel

Stitch Welded Lap Joint Collar; Box Top Necked and Beaded into Collar; Seamless Folded Corners; Snap-On Rail Flanges Pre-Installed and Clinch Locked at Corners for Secure Installation; Extruded Flange Locks for Snap-On Rails on 4 Sides; Flange Holes Pre-punched for Grille Screws on 4 Sides; Collar Top Beaded for Secure Duct Connection

Duct Box; Type Register; Size A 10" Length x 8" Width; Size B 8" Diameter; Material Thickness 0.012"/40 Gauge; Material Galvanized Steel; Inclusions/Features Non-Insulated, Snap-Rail Flange; Applicable Standard IRC M601.4.1; Optional Accessory Damper for Air Flow Balancing, R6 Insulator; Packaging Quantity 32 per Carton