 |
loading
| Availability: | |
|---|---|
Product Description
Extension rings provide a means of adding additional cubic capacity or as an outlet box for surface conduit.
| Cat# | Size | Depth | Hole Size | Knockouts | Thickness mm | ||
| Sides | Bottom | End | |||||
| HBE50178 | 4"x2" | 1-7/8" | 1/2" | 6x1/2" | / | 2x1/2" | 1.0-1.6 |
| HBE75178 | 4"x2" | 1-7/8" | 3/4" | 4x3/4" | / | 2x3/4" | 1.0-1.6 |
| HBEM178 | 4"x2" | 1-7/8" | 1/2" & 3/4" | 4x1/2" & 2x3/4" | / | 2x3/4" | 1.0-1.6 |
