Four Cylinder Air Compressor for Sale from Compressed Air Systems One of the best selling and most popular models of air compressors, the four cylinder air compressor is fit for a wide variety of uses. Offering a superior combination of reliability and performance, a four cylinder air compressor comes in many shapes and sizes, including: Horizontal compressors Vertical compressors Various cfm Different tank sizes Whether you’re looking for new or used, Compressed Air Systems has a four cylinder air compressor for you. As an authorized Powerex and Kaeser dealer, we have the best models of compressors, letting you find what you need with the quality you deserve. Plus, we also offer many high-quality makes and models of used compressors. Regardless of your industry and budget, you’re sure to find a four cylinder air compressor for you at Compressed Air Systems.