Your water quality may affect the longevity and replacement frequency of the filters.
First and Second Stage Filtration - RKIN 2 in 1 Sediment and Carbon Filter QT Series. MPN: RC-QT-PAC. Replace every 6-12 months or as needed.
Third Stage Purification - RKIN 200 GPD Encapsulated Reverse Osmosis Membrane QT Series. MPN: RC-QT-RO. Replace every 12-24 months or as needed.
Fourth Stage Filtration - RKIN AlcaPure Alkaline Post Filter QT Series. MPN - RC-QT-CF, Replace every 6-12 months or as needed.
Fifth Stage - RKIN U1 Hydrogen Module. MPN: RC-HGPEM, Replace every 6-12 months or as needed.