Outfit your semi to be Ready for the Road Ahead with ample storage space for compressed air, with the Hoosier Tank 12" HT-1200 Sub-Series 2 Steel Double Air Tank. With a solid-steel body, this replacement tank is the ideal option to store compressed air that can be used to improve a vehicle's suspension, actuate air brakes, or operate air-powered attachments. Manufactured with an automatic drain valve controlled by a pressure switch. FleetPride is your First Click in Heavy Duty .