These eight powerful, high flow ½" NPT air valves deliver unparalleled performance for 12V vehicles. The unique design provides high pressure control at minimal power consumption. The valves support pressures of up to 210 PSI and are constructed with high quality brass to ensure continuous use through extreme conditions. Solenoids are pre-wired, a metal mounting bracket is included for each valve, and the air flow direction is clearly marked with an arrow to provide an easy trouble-free installation. Premium brass fittings, flow control valves, pressure switch and drain valve are included in this kit. ½" NPT High Flow Electric Air Valves/Solenoids (Four Corners) Power Source: 12V Max Air Pressure: 210 PSI High Flow ½" NPT Female Inlet and Outlet Ports Brass Construction Pre-wired for easy Installation Ideal for Air Suspension Mounting Bracket Dimensions: 3-¼" W x 4" H x 2-¼" D Included in this kit: ½" NPT 210 PSI High Flow Electric Air Valve x 8 ¼" NPT 150-180 PSI Air Pressure Switch x 1 ¼" NPT Drain Valve x 1 ½" NPT Female Cross x 4 ½" NPT Male to ½" NPT Male Straight Coupling x 8 ½" NPT Push to Connect (PTC) Straight Pneumatic Fitting for ¼" OD Hose x 4 ½" NPT Push to Connect (PTC) Straight Pneumatic Fitting for ½" OD Hose x 8 ½" NPT Flow/Dump Control Valve x 4 ½" NPT Male to Push to Connect (PTC) Swivel Elbow for ½" OD Hose x 4 Important: All fittings in this kit are made of durable brass material.