Voltec Power & Lighting is a UL registered firm, with products listed for UL, cUL, and ULus. Our commitment to quality has earned us both ISO 13485 and ISO 9001 rating for quality control and excellence in manufacturing. 50 Amp Ext. Cord 30 ft. Black Heavy molded on male & female 50 amp 125/250 right angle connector & cap, 4 prong straight blade configuration Weather jacket guarantees this cord will not crack or become brittle in freezing temps. All Voltec products are backed by a limited lifetime warranty against defects in manufacture.