22.0 Cu. In. 3.5" dia. round fixture support box for use with nonmetallic sheathed cable - Machine tapped fixture holes, round exterior for easy cut-in, rigid hard box construction, no distortion with high temperatures, shatter resistant with low temperatures - Old work residential construction 2 HR fire resistive walls (15 lbs fixture support - flange mount) and ceilings (50 lbs. fixture support - bottom mounted) - Fiberglass reinforced polyester - thermoset box - Size: Depth=2 3/4", Dia=3 1/2" - Mount with Bottom mount button holes or flange holes - Speed Klamps™ factory installed
