Stage 1
Omnipure Q5605 Sediment Filter 5 Micron 2.5" x 12" - - Replace Every 12 Months
Stage 2
Omnipure Q5622 Carbon Block Filter Chloramine Reduction 5 Mic - - Replace Every 12 Months
Stage 3
Omnipure TQ56-75-XHR-FC200 RO membrane 75 GPD with Flow Restrictor - - Replace Every 24 Months
Stage 4
Omnipure Q5633 Granular Carbon Filter GAC T33 2.5" x 12" - - Replace Every 12 Months