Ko nga taputapu osmosis whakamuri he punaha maimoatanga wai kua whakaritea huri noa i te kiriuhi osmosis whakamuri.Kei roto i te punaha whakamuri osmosis he waahanga o mua i te maimoatanga, he ope whakamuri osmosis (wahanga filtration membrane), he waahanga i muri i te maimoatanga, me tetahi waahanga horoi punaha.