GE Infrastructure Water & Process Technologies introduces the ROsave. Zs(“), a depth cartridge filter for RO pretreatment applications with Z.Plex(“). The revolutionary new technology utilizes a proprietary filter matrix that provides unmatched performance with twice the life of conventional depth filters. NSF Standard 42 certified, the ROsave.Zs also has up to 50 percent lower pressure drop, 100 percent greater dirt holding capacity and superior SDI reduction.