- Features
| Chicago plenum, 2-1/8 in deep, 4-11/16 in junction boxes with air tight (8) 1 in side and (3) ½ in & (2) ¾ in bottom knockouts are larger boxes that are installed when larger sized conductors are required in plenum spaces. These boxes are great for industrial applications. Garvin Industries' 2-1/8 in deep boxes provide extra volume for wiring and devices. |
| -Installed when larger sized conductors are required in plenum spaces |
| -Great for industrial applications |
| -Provide extra volume for wiring and devices |