| Shipping | Tax | Terms Shopping Cart 0 Items Request for Quote 0 Items All Categories > Kaeser Products > Rotary Screw Compressors > Oil-Free Rotary Screw Compressors > Water-Cooled Oil-Free Rotary Screw Compressors Water-Cooled Oil-Free Rotary Screw Compressors Click on a Product to view details. CSG-2 W Series Water-Cooled Oil-Free Air Compressors (27) DSG-2 W Series Water-Cooled Oil-Free Air Compressors (18) FSG-2 W Series Water-Cooled Oil-Free Air Compressors (14) Maintain Your Air Compressor Learn more about maintaining your air compressor by downloading our eBook on air compressor maintenance. Download eBook