The water transport unit includes a moisture donating fluid channel and a moisture accepting fluid channel, where the latter is fluidly connected with {HEAD ~ a portion} of the fuel cell that is in need of {TAIL ~ humidification} 
The water transport unit includes a moisture donating fluid channel and a moisture accepting fluid channel , where the latter is fluidly connected with { HEAD ~ a portion } of the fuel cell that is in need of { TAIL ~ humidification }
OTH OTH OTH OTH OTH 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 TAIL TAIL TAIL TAIL TAIL