Disposable Filter CartridgeEasy Change RO Membrane - GreenfilterContact Us to PurchaseFeatures Quick connect design, easy to maintain High quality Green Filter brand RO membrane. Effectively takes out TDS, viruses, bacteria, heavy metal, pesticides, and chemicals …etc. Specification Model Type Spec. Remark FT-4004 FK RO Membrane 50 GPD, Green Filter FT-4005 FK RO Membrane 75 GPD, Green Filter FT-4006 FK RO Membrane 100 GPD, Green Filter Note Do not use where the water is microbiologically unsafe or of unknown quality without adequate disinfection before or after the unit. The system is to be supplied only with cold water. The system and installation shall comply with applicable state and local regulations.