NTR RO Systems Replacement Cartridges
AMI NTR Filter Systems Replacement Cartridges
For NTR-RO-50 "No Tools Required" RO Water Treatment System
NTR cartridges are not compatible with Simple-Change RO 50SC and 100SC. See Watts Kwik-Change Cartridges.
| Stage # | Cartridge Model | Description | Label Color | Recommended Replacement |
| 1 | NTR-50S | Sediment Prefilter, 5 Micron | Red | Every 6 Months |
| 2 | NTR-50C | Carbon Prefilter, Extruded Carbon Block | Yellow | Every 6 Months |
| 3 | NTR-50M | 50 Gallon Per Day RO Membrane | Green | Every 12 Months |
| 4 | NTR-50P | Carbon Post Filter, GAC | Blue | Every 12 Months |
