Elecman MGB600, 6", 6 AWG to 250 MCM, Threaded, Rigid Grounding Bushing, 1 pc. Appleton/O-Z DC-5500, 3/8", 1/2" KO, Die-Cast, Duplex AC/Flex Connector, 1 pc. We have new products in manufacturer boxes, as well as loose and shelf-worn quality products to save you even more money.