KL0311 4 way electronic valves for air compressor Voltage:DC12V,24V.AC110V,220V sealing:viton KL0311 4 way electronic valvesMainly used in air ... compressor to control loading,off-loading,pressurizing,decompression,inlet,exhaust automatically ... :size: KL0311 4 way electronic valves for air compressor/DC12V,24V.AC110V,220V