Vent Boot Hanger Boot Style 90 Degrees Boot Collar Diameter 7 in Collar Connection Height 7 in Collar Connection Width 7 in Material Steel Compatible Register Height 6 in Compatible Register Width 12 in Duct Size 6 x 12 in Cap/Collar Material Steel Product Type Register Boot Damper Type None Standards Meets LEED IAQ 3.1 Credit Includes Air Tight Foam Gasket Drywall Mud Ring Dust And Debris Cover