TERRAFIRMA PORTABLE AIR COMPRESSOR DOUBLE PUMP PORTABLE AIR COMPRESSOR 150PSI This Double Pump Portable Air Compressor is ideal for rapid tyre inflation after a puncture or reinflation after off roading with reduced tyre pressures. The twin piston compressor offers great value and includes a 10m flexible inflation hose with a pressure gauge which is long enough to reach all round your 4x4. Positive and Negative heavy duty crocodile clips power the compressor when connected directly to the vehicle or other 12v battery and clean air is drawn into the twin cylinders through serviceable filters, always useful if it's used in dusty conditions. For ease of carrying and storage the compressor and hose are neatly packed in a compact and tough plastic carry case.