Leviton® Black & White® Locking Connector, 125/250 VAC, 20 A, 3 Poles, 4 Wires, 14 to 10 AWG Wire, NEMA Rating: NEMA L14-20R, Screw Terminal, 2000 V Dielectric Strength, -40 to 60 deg C, Nylon Housing, Brass Contact, Black/White, 2.08 in Diameter, 3.53 in Height