Air Lift Performance 4-Way Manual Air Management System Economical, simple and accurate control for all 4 wheels Great for use with gauge and pillar pods The system provides a maximum pressure of 175 psi Features a VIAIR 100% duty cycle 16444 Compressor 1/4? air line for accurate and smooth adjustment Attractive stainless steel switch plate This Kit Includes: Viair 444C Chrome Continuous Duty Compressor (200psi) 4 Gallon Aluminum Tank Air Line Two Dual-Needle Pressure Gauges 4 Paddle Valves Air Fittings Air Line Cutter Everything needed for installation!