Product Details: The Hendrickson Programmed CP Tire Inflation Controller with Delphi Connector is designed to automatically inflate or deflate tires, ensuring they stay at the optimal pressure levels for peak performance. With its precise programming, this controller maintains accurate tire pressure, eliminating the need for manual adjustments. By keeping your tires properly inflated, it reduces rolling resistance, which translates into improved fuel efficiency and extended tire life. FleetPride is your First Click in Heavy Duty®.