| Configuration One 1/2 IN Knockouts, For 4 X 2 1/8 IN Boxes |
| For use with 4 x 2-1/8 in box |
| Unless otherwise noted all concentric or eccentric knockouts are 1/2 - 3/4 in combinations |
| Single and double gang metallic outlet and switch boxes are acceptable for use in two-hour fire rated walls |
| Groundskeeper raised ground feature on boss inside box provides one or two NO.10-32 tapped hole, allowing a 3/8 in long green ground screw to be threaded into box without contacting mounting surface |
| Other boxes provided with flat ground tapped hole, except plenum boxes |
| Single receptacle |
