Angle Plug for Dryers, Commercial Grade, 3-Pole, 30 or 50-Amp Configurable

30a,/50a, 125/250v, black, 3 pole, 4 wire grounding, heavy duty dual power range/dryer angle plug, nema 14-30/14-50, ul, federal specification, csa, interchangeable blades allowing either a 30a, or 50a, configuration, ul listed for use with aluminum wire, dead front design, box.