7-1/2" H, 6-1/2" Opening, Integral Thermal Protected Air-Tite Recessed 6" Halo Housing, For Insulated Ceilings & Direct Contact With Insulation, For Use In 2" x 8" Joist Construction, Adjustable Socket Bracket, Junction Box Listed For Through Branch Circuit Wiring, 7 Each 1/2" Ko's, 4 Each Non-Metallic Ko's With Pry Out Slots & Strain Relief, Plaster Frame With Locking Screw For Hanger Bars, Adjusts For Ceiling Thickness, Pre-Installed Captive Nailless Bar Hangers To 24" Joist Span, Bar Hangers Can Be Repositioned 90 Degree Without Tools, Hangers Fit T-Bar Spline, Damp Location, Feed Through, IP Rated, UL, CSA, Meets State Of Washington Restricted Air Flow Requirements, Bulk.