ROsave.Zs is manufactured using patent pending Z.Plex filter technologyand is engineered for reverse osmosis pretreatment and otherpure water applications. ROsave.Zs' proprietary filter matrix providesunmatched performance in these applications.> Up to twice the life of conventional depth filters> Up to 50% lower pressure drop> Up to 100% greater dirt holding capacity> Superior SDI reduction> Melt-bonded exterior ensures no media migration> Provides lower total cost of filtration operations> NSF 42, FDA approved clcick here for data sheet