Arlington BES2C Box Extender Coupler Set, Plastic 10 PackArlignton BES2C BES2C Product Description Our box extender levels and supports the wiring device where the box is set back from the wall surface and extends the box up to 1 1 2". 2 hour fire rating. Four Gang. Specifications: Brand: Arlington Part Number BES2CUPC 018997489791Family Box ExtendersWidth (in) 2. 062Height (in) 1. 127Color WhiteOperates Non metallic box extender coupler set. Adds one gang to Arlington's BES2Material Plastic, Paintable