Condensate filters remove oil and other contaminants from compressed air condensate, making the water safe for drain disposal. The unit requires no electricity and handles most compressor lubricants in two sizes — KCF-20 is rated for flows of approximately 100 cfm, and KCF-100 is rated for flows to 500 cfm. Three-stage, self-contained plastic filter cartridge is easy to replace and dispose of without use of filter bags. Kaeser Compressors, (800) 777-7873,