SK Series SK-5E 0.4m/min 4KW Oil free scroll air compressor with 24L built-in air tank Model: SK-5E Power: 4kW FAD: 0.4m/min at 0.8 MPa High efficient oil-free (Oilless) scroll air compressor with 24L built-in air tank 100% oil-free Low noise level Compact construction Maintenance-friendly design