Global Water Universal 10' Global Water Replacement Filter Set for 5-Stage Reverse Osmosis RO Filters with 50GPD Membrane, Fits all 5-stage RO Systems. Universal Global Water Standard 10' Replacement Filter Set, fits standard 5 Stage RO System Housings, Compatible To Most RO Systems- 50 GPD Membrane High Quality TFC RO Membrane Tested And Qualified That Provides Up To 99% Reduction Rate Of Bacteria & Chemicals. Total of 5 Filters That Fits 10-Inch standard filter housings, compatible to most RO systems. Superior Quality filters Guaranteed to Improve The Taste of Drinking Water High Quality Inline filter cartridge quick connect- (polishing filters)