The Haldex 7" Adjustable Precision Response Plus Height Control Valve is designed to provide the industry's tightest dead band to eliminate ride height variation. This valve arm is ideal for use on any truck, tractor, trailer, industrial or recreational vehicle air suspension. It features two 3/8" PTC delivery ports and is adjustable for vertical height. With its superior design and construction, the control valve arm is the perfect choice for any fleet. Not only is it easy to install and maintain, this control valve will help reduce maintenance costs and downtime. FleetPride is your First Click in Heavy Duty®.