{"title":"Brake \u003e Valves \u003e Trailer Air Brake Air Supply Knob","description":"\u003cp\u003eAlso known as: Air Supply Valve. A knob used on the dash of a vehicle to shut off the air supply to the air brake system of a trailer.\u003c\/p\u003e","products":[],"url":"https:\/\/frsport.com\/collections\/brake-valves-trailer-air-brake-air-supply-knob.oembed","provider":"FR SPORT","version":"1.0","type":"link"}