intermediate member means arranged between said cover and base members to divide said filter chamber into a plurality of {HEAD ~ filter subchambers}, said intermediate member means having planar surfaces arranged adjacent said cover and base member planar surfaces, respectively, a portion of said intermediate member means containing a plurality of segmented circular {TAIL ~ concentrically spaced throughslots} corresponding with said cover and base member circular grooves 
intermediate member means arranged between said cover and base members to divide said filter chamber into a plurality of { HEAD ~ filter subchambers } , said intermediate member means having planar surfaces arranged adjacent said cover and base member planar surfaces , respectively , a portion of said intermediate member means containing a plurality of segmented circular { TAIL ~ concentrically spaced throughslots } corresponding with said cover and base member circular grooves
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH