Hubbell Wiring Device-Kellems, GFRST15W, GFCI Receptacle, 1-Phase Grounding Self-Test Screw Mount, 125 VAC, 15 A, 1/2 hp, 60 Hz Frequency, 2 Pole, 3 Wires, 5-15R NEMA Rating, Commercial Grade, -35 to 66 deg C, Screw Terminal, Thermoplastic/Composite, White, 1.75 in W x 1.47 in D x 3.27 in H Dimensions