Both {HEAD ~ the flow} through {TAIL ~ honeycomb substrate} 200 and the wall flow particulate filter 300 include honeycomb substrates having channels, as will be further explained below 
through
Both { HEAD ~ the flow } through { TAIL ~ honeycomb substrate } 200 and the wall flow particulate filter 300 include honeycomb substrates having channels , as will be further explained below
OTH HEAD HEAD HEAD HEAD HEAD HEAD REL 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