Thomas & Betts, B3485, Ivory Metal, Surface Raceway Fitting Combination Connector, Connects raceway, without offsetting, to any surface-mounted 3 1/4" or 4" [83mm or 102mm] outlet box with 1/2" trade size conduit KOs. Base has two 1/2" trade size KOs, one on end and one on bottom. Included spring steel bushing eliminates need for conduit nipple and HICknut for end connection to box, For Use With B300 And B400 Raceway, Boxed.