Wiremold® Communication Service Fitting, 4-Piece, Series: 525, For Use With: Walkerduct® Pro Series, Walkerduct® Underfloor Duct, Flushduct® and Walker 800 Series Floor Box, Die Cast Aluminum, Brushed Aluminum/Satin, 4-7/16 in L x 3-1/8 in W x 3 in H,