Pentair 4-Stage Monitored Reverse Osmosis System (GRO-475M)
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Pentair Freshpoint 4-Stage Monitored Reverse Osmosis System (GRO-475M)

SKU: 161151


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Get the drinking water you've been longing for with the Pentair 4-Stage High Efficiency Monitored Reverse Osmosis System. This system is NSF Standard 53 and 58 certified and offers a massive reduction in countless drinking water contaminants including TDS, Chlorine, Heavy Metals including Lead, Pharmaceuticals, and Pesticides. Along with its high efficiency due to its 1:1 product vs waste ratio, the GRO-475M includes  an effortless click-in lock and color coded cartridge for easy installation/maintenance, as well as a TDS monitor. The TDS monitor is used to monitor your system performance and let's you know when you may need to change your filters. 

Tech Specs

  • 75 Gallon Per Day TFC Membrane
  • 1:1 product vs waste ratio
  • Approximate 21 gpd production under typical conditions
  • 3.2 gallon storage tank (2.1 gallon max capacity)
  • pH Limits: 3-11 
  • Incoming water hardness should be less than 10 gpg
  • Incoming Iron should be less than 0.1 ppm
  • Chlorine in water supply should be less than 2ppm
  • Water pressure range = 40/100 psi
  • Max supply TDS = 2000 mg/L
  • For use on microbiologically safe water only
  • Minimum 99.6% Lead Reduction

In the Box

  • 1 x 4-Stage RO system with filter cartridges
  • 1 x lead-free drinking water faucet with air gap
  • 1 x installation hardware kit
  • 1 x Steel Storage Tank
  • All Necessary Tubing
Customer Reviews
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Filter Reviews:
23 October 2021
Nick G.
Canada Canada

Smooth delicious water

Made a big difference in the taste of our coffee and tea. Has a smooth taste, and glad that it's filtered for our baby

11 January 2021
Mike P.
Canada Canada

Great product and great service

The installation of this item was very simple and the product seems to be of very high quality. Too early to say if product and filters will last a long time but I suspect that this product will perform very well in the long run. Very happy I purchased this brand over other similar RO systems. Most attractive feature is the waste water this system produces. Compared to other RO systems this is far better for the environment and will surely save lots of water.