4-circuit basic air preparation kit is universal for any car. Components can be replaced with more efficient ones depending on the need. It is possible to retrofit with pressure gauges for monitoring driving pressure, remote control or control buttons, and digital controllers with memory. Contains an electromagnetic all-weather valve block and wear-resistant lines, with a cross-section that provides an average speed of ascent and descent and all the necessary components. An affordable and reliable system, easy to install and operate.