The present invention is a filter assembly for filtering contaminants from first and second fluid sources. The filter assembly includes front and rear portions having front and rear apertures, respectively, extending therethrough. The filter assembly also includes a web portion for spacing longitudinally the front and rear portions and having a filter orifice extending therethrough for allowing fluid flow between the front and rear apertures. The front and rear portions include means forming a filter disposed in each of the front and rear apertures for filtering contaminants from fluid flowing through the front and rear apertures.