Bushranger Max Air III 55X23 Compressor Guide: 12V, 72 L/min and 150 PSI The Bushranger Max Air III, part number 55X23, is a 12V portable and hard-mountable tyre compressor aimed at 4WD, touring, caravan and general vehicle use. Bushranger lists a maximum free-air flow of 72 L/min, maximum intermittent pressure of 150 psi, a built-in pressure switch, 30A maximum current consumption and a 40A inline fuse. It is more substantial…