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