Although the water transport unit 900 is shown as a pair of generally rectangular film like channels 910 and 920 with membrane 930 and diffusion media 940, it will be appreciated that the channels, membrane and diffusion media may be any of {HEAD ~ a variety} of {TAIL ~ shapes} 
of
Although the water transport unit 900 is shown as a pair of generally rectangular film like channels 910 and 920 with membrane 930 and diffusion media 940 , it will be appreciated that the channels , membrane and diffusion media may be any of { HEAD ~ a variety } of { TAIL ~ shapes }
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