IPW Industries Replacement Filter Set compatible with Geekpure 6-Stage Reverse Osmosis RO Water System with Alkaline pH+ Filter, 75 GPD (Set of 6 Filters)IPW Industries Compatible Filter Set Complete 6 Stage Replacement Filter Set for Geekpure 75 GPD Alkaline RO Systems Full annual filter replacement package for Geekpure 6 stage reverse osmosis systems with alkaline remineralization 6 Filters Included 75 GPD Membrane Alkaline pH+ WHY IT WORKS Six stages engineered to match Geekpure system specifications Three Layer Pretreatment Sediment filter captures particles down to 5 microns, GAC filter removes