Used for extending set back electrical boxes up to 1-1/2-Inch, levels and supports wiring device
Automatically levels and supports outlets, switches, GFCIs and other standard devices
Also used for handy boxes and 4-Inch square electrical boxes with plaster rings for single switches or receptacles
Manufactured from 94-Volt rated flame retardant plastic for safer installations, two hour fire rating
Compliant with 2008 NEC Article 314.2