You are here > Residential > Drinking Water Systems > Under Counter RO Units

Watts® 525 Premium Series RO Systems

Certified by NSF International

Features and Benefits

  • Five stage treatment for superior performance.
  • 50 GPM membrane (Made in USA).
  • Designer chrome faucet with ceramic disc for greater durability.
  • Genuine John Guest® fittings throughout for optimum security.
  • 3/8” post filter and 3/8” tubing to faucet for greater flow.
  • Assembled in USA.
  • Certified by NSF International (Std. 58) for third party documentation.
  • Certified to NSF / ANSI Std. 58 for Pentavalent Arsenic reduction.
  • One year limited warranty from date of purchase.


Specification Data
Membrane 50 GPD
Maximum pressure 100 psi
Minimum pressure 40 psi
Maximum TDS 2,000 PPM
Maximum hardness 15 GPG
Maximum Iron 0.3 PPM
Maximum HS 0.0 PPM
Tubing (tank & faucet) 3/8
Tubing (other) 1/4


Components Part Number
Pre-filter, sediment, 5 micron IF-SP-1005
Pre-filter, carbon, 5 micron F109009
Pre-filter, carbon, 5 micron F109009
Membrane W-1812-50
Post filter W560033
Faucet FU-WDF-905-CP
Tank FRO-132-WH
Fittings (inlet, outlet) Quick Connect
Feed water valve F560070/F560080


Part Number Pump Stage Membrane Faucet Fittings Tank Ship Wt.
W-525 No pump 5 50 GPD Designer - 905 Chrome Quick Connect Metal 27