Pentair PRF-RO Tankless RO Reverse Osmosis System 690GPD (2,600L)

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Pentair PRF-RO Tankless RO Reverse Osmosis System 690GPD (2,600L)

  • Continuous Flow / Direct Flow RO System
  • Made in USA - Genuine Pentair
  • Works with Line Pressure 2.76 bar up to 5.52 bar
  • On-Demand Flow System
  • No Pump / Electricity or storage
  • Never Runs Dry - Increasing Membrane Life
  • Suitable for the filtration of Bore Water for Home Use*

Pentair PRF-RO Tankless RO System

PRF-RO is a reverse osmosis system with on-demand, continuous flow that doesn't require a storage tank and is functioning without a pump or electricity. This system features a consistent membrane efficiency and a high recovery. Moreover, it has a high impact plastic construction and compact and sleek styling.

The Pentair Water® Reverse Osmosis System delivers up to 690 gallons per day using typical line pressure, which eliminates the need for a supplemental pump in most applications. That’s enough capacity for many small business applications, at the price of a residential system. The Pentair Water RO features a continuous flow design, so there’s no need to clear space for a storage tank.


  • Steamers
  • Coffee Makers
  • Processing
  • Water Coolers
  • Offices
  • Restaurants
  • Humidifiers
  • Aquariums
  • Misters
  • Pubs
  • Home Use - Bore Water Filtration*

Features & Benefits

  • Continuous Flow - No Storage Tank Needed
  • Works with line pressure - > 40psi
  • No Pump Or Electricity
  • Never Runs Dry
  • Consistent membrane Efficiency
  • High Recovery System - Less Wasted Water goes down the drain


* Pending a breakdown of a water analysis

Working Specifications:

Max Pressure              40 - 80 psi
Working Pressure       70psi (500 kPa)
Max Flow                    1.8L/Min
Temperature               4.44°C – 38.78°

Inlet Water Quality Requirements:

TDS                             < 2000 mg/L
Hardness                     < 171 mg/L
Chlorine                       < 1.0 mg/L
Iron                              < 0.1 mg/L
Manganese                 < 0.05 mg/L