Leviton 8300-HLG 20-Amp 125-Volt NEMA 5-20R, 2P, 3W, Extra Heavy Duty Hospital Grade Duplex Receptacle, Gray Impact-resistant thermoplastic nylon cover and body Smooth face does not collect dirt Four corner latches securely fasten face Extra Heavy-Duty triple-wipe, brass "T" contacts for superior contact and conductivity Back and side-wire ground termination brass strap version