Watts 315 Three-Stage RO System
This is a traditional, 3-stage reverse osmosis system for undersink use. Be sure to replace the carbon pre-filters at least once annually and the RO membrane every 2-3 years. These parts as well as the replacement tank and maintenance kits can be found below.
- STAGE 1 - Carbon Block Pre-Filter (OMB934-5m) - Replace Every 12 Months
- STAGE 2 - RO Membrane 50 GPD (555694-00) - Replace Ever 24 Months
- STAGE 3 - Carbon Block Post-Filter (OMB934-5m) - Replace Every 12 Months