Watts Filter-Pure UF3 531130 UF System


This 3 stage UF (Ultra Filtration) System uses sediment and carbon block pre-filters to reduce sediment, chlorine and chlorine by-products before the membrane filters out impurities larger than .2 microns. The carbon block for this system also reduces VOC, lead and cysts. Color-coded labels make it easier to identify the filters you need.


NOTE: Because of corporate restructuring by Watts, we no longer have access to RO Pure or Filter Pure filter cartridges and must be ordered from a dealer or online.



  • STAGE 1 – Sediment Pre-Filter (105311) – Replace Every 12 Months
  • STAGE 2 – Carbon Block Pre-Filter (105371) – Replace Every 12 Months
  • STAGE 3 – UF Membrane Hollow Fiber (105321) – Replace Every 24 Months

PDF iconWatts Filter-Pure System Manual