Again referring to FIG 1A, {HEAD ~ the diameter} of the flow through {TAIL ~ honeycomb substrate} 200 may be the same as, or may be larger than, the diameter of the wall flow particulate filter 300 
Again referring to FIG 1A , { HEAD ~ the diameter } of the flow through { TAIL ~ honeycomb substrate } 200 may be the same as , or may be larger than , the diameter of the wall flow particulate filter 300
OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH