Flush Three Gang Extension Adapter Fitting, Series 500, 700, For Raceway Height 3/4 in, For Raceway Width 3/4 in, For Raceway Width x Height 3/4 in x 21/32 in, Material Steel, Color Ivory, Number of Channels 1, Compatible with Product Type 500 Raceways, 700 Raceways, Features For Extensions From Existing Flush Switch and Receptacle Boxes, Three-Gang: 4-5/8 in L x 6-1/2 in W, Number of Gangs 3, Overall Height 1 in, Overall Length 4 3/4 in, Overall Width 6 1/2 in