Product Details: The Hendrickson 7" Arm Height Control Valve Kit with Dump Valve is the perfect choice for any truck, tractor, trailer, industrial or recreational vehicle air suspension. This kit is manufactured to meet the highest quality standards and is fitted with the industry's tightest dead band to eliminate ride height variation. It also makes use of ceramic seal technology for remarkable durability and reliability. This kit is designed to provide superior performance and is the perfect choice for any air suspension system. FleetPride is your First Click in Heavy Duty®.