For oil-less dual headed compressors. Model(s) This Part Fits. Coalescing Filter Element RPI Part #CMK025. (4) Replacement Filter Element RPI Part #CME004. YOUR #1 DENTAL SUPPLIER. If you have any questions, please message us. ABGZ LLC 100 Pierre Ave Unit A Garfield NJ 07026. The sale of this item may be subject to regulation by the U. Food and Drug Administration and state and local regulatory agencies.