About this item

• Used for extending electrical boxes up to 1-1/2-inches
• Automatically levels and supports outlets, switches, GFCIs, receptacles, and other standard devices
• Works with handy boxes and 4-inch square electrical boxes with plaster rings for single switches
• Manufactured from 94VO rated flame retardant plastic for safer installations, two hour fire rating
• 2x Flat Head Phillips Machine Screw, 6-32 x 1-1/2" included. Compliant with 2008 NEC Article 314.2. Manufacturer limited lifetime warranty