The Apsco 4-Way Dual Hydraulic Cabin Air Control Valve is the perfect solution for controlling Cabin air pressure. This valve is equipped with backlights and electrical switches, eliminating the need for wire to connect the rocker assembly. The rotary connection enables the handle to be powered from the cabin, making it easy to adjust the air pressure. This valve is designed to provide reliable performance and long-lasting durability. It is the perfect choice for any cabin air control system. FleetPride is your First Click in Heavy Duty®.