- Features
| Chicago plenum 2-1/8 in deep, 4 in octagon boxes with air tight (2) ½ in & (2) ¾ in side knockouts and (3) ½ in & (2) ¾ in bottom knockouts are used to install ceiling and wall lighting fixtures, fans, convenience junction boxes and devices when an air tight seal is needed. Garvin Industries' deep, octagon boxes are made with a versatile combination head screw. They also come with labor saving installation and mounting tabs that align with most lighting fixtures. |