Replacement Filters for the Watts Premier OneFlow Plus OFPSP 2-Stage Whole-House System
Watts Premier OneFlow Plus OFPSP
🔧 Media-based system
This system uses tank media and hardware rather than drop-in cartridges.
✓ Cross-referenced to your Watts Premier OneFlow Plus OFPSP
📋 Typical replacement: carbon every 6–12 months
1
TAC scale-reduction media cartridge (~3yr)
OFPSP
2
Not sure this is your system? Use the Isopure Water Filter Finder → Match by system name, by the part number on your cartridge, or by photo.
