Universal 10' Global Water Replacement Filter Set for 5-Stage Reverse Osmosis RO Filters no 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 Two sets of of filters with very low cost Total Of 8 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 WQA Inline filter cartridge quick connect- (polishing filters)