The catalyst carrier 15, wherein the outermost peripheral cell wall has a thickness in a range of {TAIL ~ approximately 0.25 mm} through {HEAD ~ approximately 0.50 mm} 
The catalyst carrier 15 , wherein the outermost peripheral cell wall has a thickness in a range of { TAIL ~ approximately 0.25 mm } through { HEAD ~ approximately 0.50 mm }
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 HEAD HEAD HEAD HEAD HEAD HEAD HEAD