GEA vehicle compressors in the FK series are the result of decades of experience in mobile refrigeration. Particularly when it comes to bus air-conditioning, they are the standard of all renowned manufacturers. Unsurpassed lightweight, compact and robust design with a large speed range - these are just a few of the outstanding features of this unique product range with 2, 4 and 6 cylinder compressors. Tailor-made to the individual application with many different design versions. One special innovation constitutes the so-called K version with a unique valve plate system for the toughest demands in mobile air-conditioning.