Marinco 124ARV 50-30 Amp Twist Lock RV AdapterAllows 50 amp, 125 or 250 volt cord set plug into a 30 amp, 125 volt RV straight blade receptacle. Molded heavy-duty 30 Amp plug constructed for durability & reliability; Waterproof sealing collars providing maximum moisture protection between the connector & cordset; Twisting lock feature ensures a secure connection between cords; 12" long robust 10 gauge/3 wire cord; Power rating: 125/250V; CSA approved; Color: Yellow; Compatibility: Can be used with Class A, B, or C motor homes, travel trailers, fifth wheels, pop-ups; Weight: 1.5 lbs; Limited 90 day warranty; Made in the USA;