Replacement Filters for HealthyWaterSupply Sintra Counter top RO Reverse Osmosis Water Filter System - Bundle.

Stage 1 Filtration: HWS CT Sediment Prefilter 5 micron, SKU- HWSPFCT5M

Stage 2 and 3 Filtration: HWS CT Granulated Activated Carbon, SKU- HWSPFCTGC

Stage 5:  HWS Alkaline Post Filter, SKU: HWSFAL

Note: Stage 4 - RO Membrane 100 GPD, SKU - HWSM100 Does not have to be replaced with every filter change. Replace on as needed basis only, on average every 2-3 years. Not included with this bundle.