Leviton 5252-BU 15 Amp, 125 Volt, Industrial Series Heavy Duty Specification Grade, Duplex Receptacle, Straight Blade, Self Grounding, Blue Impact-Resistant Thermoplastic Nylon Cover and Body Smooth Face Does not Collect Dirt Back and Side-Wiring Options Four Corner Latches Securely Fasten Face Apron Barrier to Prevent Accidental Contact Between Terminal Screw Heads and Metal Box