1. Filime ya UF ikozwe muri ultrafiltration membrane, mugihe Ro film ikozwe muri revers osmose membrane.

2. Filime UF ikoreshwa mugukuraho ibice binini na molekile, mugihe Ro film ikoreshwa mugukuraho uduce duto na molekile.
3. Filime UF ifite igipimo cyo kwangwa ugereranije na Ro film, bivuze ko abanduye bamwe bashobora gukomeza kunyura muri firime ya UF, mugihe Ro film ifite umubare munini wo kwangwa.
4. Filime UF ikoreshwa mubikorwa byo gutunganya amazi nko kubanza kuvura sisitemu ya RO, mugihe Ro film ikoreshwa mukunyunyuza amazi hamwe nubundi buryo bwo gukoresha amazi meza.
5. Filime UF isaba umuvuduko muke ugereranije na Ro film, bigatuma ikoresha ingufu.
6. Filime UF irahenze cyane kuruta Ro film, bigatuma ihitamo gukundwa cyane no gutunganya amazi yinganda namakomine.