Chicago Pneumatic CPA20/8 T DRY 15kW 20HP 500L Silent Screw Air Compressor with Tank & Dryer - MADE IN ITALY. Chicago Pneumatic introduced the CPA Series more than a decade ago. And in this period of time a strong reputation of quality and top performance was built. But, apart from this remarkable past, the design and philosophy have evolved to match current customer needs: a beautiful all-in-one, powerful and silent screw compressor. A seamless product in terms of user friendliness, reliability and life duration, which makes this series, “the screw compressor” for tough and hard working conditions.