Firestone Air-Rite Air Command Standard Duty Dual Electric Air Compressor System Kit (WR17602178)Perfect for off center loads such as slide in campers, this electric, dual gauge control in your cab levels one set of springs independently or two pairs equally with the flick of a switch. Kit includes a standard duty compressor with 130 max psi. Features: Air spring pressure control kit with electric, dual gauge control Allows you to control air pressure levels from vehicle cab Operates air bags with dual switches Push switches up to inflate air