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Product Description
Used for installing ceiling and wall lighting fixtures, fans, or convenience outlets and devices, 4” Octagon Drawn Boxes are available in multiple KO sizes with or without concentric KOs and installed 10/32 ground screw where noted. UL listed and RETIE compliant.
| Cat# | Size | Depth | Hole Size | Knockouts | Thickness mm | |
| Sides | Bottom | |||||
| OB50112 | 4"x4" | 1-1/2" | 1/2" | 4x1/2" | 3x1/2" & 2x3/4" | 1.0-1.6 |
OB75112 | 4"x4" | 1-1/2" | 3/4" | 4x3/4" | 3x1/2" & 2x3/4" | 1.0-1.6 |
| OBM112 | 4"x4" | 1-1/2" | 1/2" & 3/4" | 2x1/2" & 2x3/4" | 3x1/2" & 2x3/4" | 1.0-1.6 |
| OB50178 | 4"x4" | 1-7/8" | 1/2" | 4x1/2" | 3x1/2" & 2x3/4" | 1.0-1.6 |
| OB75178 | 4"x4" | 1-7/8" | 3/4" | 4x3/4" | 3x1/2" & 2x3/4" | 1.0-1.6 |
| OBM178 | 4"x4" | 1-7/8" | 1/2" & 3/4" | 2x1/2" & 2x3/4" | 3x1/2" & 2x3/4" | 1.0-1.6 |
| OB50218 | 4"x4" | 2-1/8" | 1/2" | 4x1/2" | 3x1/2" & 2x3/4" | 1.0-1.6 |
| OB75218 | 4"x4" | 2-1/8" | 3/4" | 4x3/4" | 3x1/2" & 2x3/4" | 1.0-1.6 |
| OBM218 | 4"x4" | 2-1/8" | 1/2" & 3/4" | 2x1/2" & 2x3/4" | 3x1/2" & 2x3/4" | 1.0-1.6 |
