CANTEX Plastic Old Work Box Extender Electrical Box

Extender Box Nm Designed to level and support the wiring device where the box is set back from the wall surface. Extends the box up to 1-1/2-". Functions with all standard devices, switches and GFCI's. Made from non-conductive, 105 degree C continuous use 94VO rated flame retardant material. Made of flexible plastic that won't strip insulation off the wires or short out on screws of side wire devices. May be trimmed if necessary. Features. Extender Box Nm Specifications. Dimension: 1.26 x 2.19 x 3.98 in. Cube: 10.98. Weight: 0.06 lbs