1. Ifilimu ye-UF yenziwe ngama-membrane e-ultrafiltration, kuyilapho ifilimu ye-Ro yenziwe ngama-membrane e-reverse osmosis.

2. Ifilimu ye-UF isetshenziselwa ukususa izinhlayiya ezinkulu nama-molecule, kuyilapho ifilimu ye-Ro isetshenziselwa ukususa izinhlayiya ezincane nama-molecule.
3. Ifilimu ye-UF inezinga lokwenqatshwa eliphansi kunefilimu ye-Ro, okusho ukuthi ezinye izinto ezingcolisayo zingase zidlule kwifilimu ye-UF, kuyilapho ifilimu ye-Ro inezinga lokwenqatshwa eliphakeme.
4. Ifilimu ye-UF isetshenziswa ekusetshenzisweni kokwelashwa kwamanzi njengokwelashwa kwangaphambi kwezinhlelo ze-RO, kuyilapho ifilimu ye-Ro isetshenziswa ekususeni usawoti kanye nezinye izinhlelo zamanzi ezihlanzekile kakhulu.
5. Ifilimu ye-UF idinga ingcindezi encane kunefilimu ye-Ro, okwenza ibe namandla okusebenzisa kahle.
6. Ifilimu ye-UF ishibhile kakhulu kunefilimu ye-Ro, okwenza kube ukukhetha okuthandwayo kwezicelo zokwelashwa kwamanzi zezimboni nezomasipala.