Leviton 6369CR 50 Amp, 125/250 Volt, Industrial Grade, Black and White Locking Flush Mount Receptacle, Grounding, Corrosion Resistant, Black Rugged Nylon Body and Cover for Outstanding Resistance to Impact and Harsh Chemicals Double-Wipe Phosphor-Bronze Power Contacts Ergonomic, Fluted Body Design with Radial Grip Ridge is Ideal for Gripping, Turning, and Pulling Internal wiring chambers isolate individual conductors to prevent flashover, arcing, excessive heat buildup and stray strands of wire Black and White Plugs and Connectors are being phased in as RoHS compliant products