Our Immediate Response Height Control Valves are a practical solution for replacing Midland/Haldex & Neway 90554271 valves. With 1/4 Inch NPT ports and a built-in dump valve, these valves are versatile and easy to use. They fit most makes and models, making them a convenient choice for any vehicle. Sold individually, these valves offer reliable performance and efficient height control. Upgrade your vehicle's suspension system with our Immediate Response Height Control Valves.