• Pentair Freshpoint 4-Stage Reverse Osmosis System (GRO-475B)
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Pentair

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

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

$599.00 CAD
$599.00 CAD
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Product Details

The Pentair FreshPoint GRO‑475B is a 4-stage under-sink reverse osmosis system that delivers up to 75 gallons of clean, great-tasting water per day. It uses high-efficiency membrane technology to reduce a wide range of contaminants including chlorine, fluoride, lead, arsenic, and total dissolved solids (TDS). This system includes a stylish air-gap faucet, a pressurized storage tank, and quick-change cartridges for simple maintenance. It's ideal for families looking for dependable, low-waste water filtration.

Features & Specs

✅ Features

  • 4-stage filtration: sediment filter, carbon pre-filter, GRO™ membrane, and post-carbon filter

  • Removes chlorine, fluoride, lead, arsenic, cysts, TDS, and more

  • GRO™ high-efficiency membrane with ~1:1 product-to-waste ratio

  • Easy click-in, color-coded cartridges for fast filter changes

  • Includes air-gap chrome faucet and 2.1-gallon usable storage tank

  • Certified to NSF/ANSI Standards 42, 53, and 58

  • Space-saving design fits under most kitchen sinks

🔧 Maintenance

  • Pre and post-filters: Replace every 12 months

  • RO membrane: Replace every 18–24 months

  • Flush system for 5 minutes after filter changes or extended periods without use

  • Regular maintenance protects the membrane and ensures consistent performance

📊 Specs

  • Filtration stages: 4

  • Production rate: 75 GPD (gallons per day)

  • Storage tank capacity: 3.2 gallons total (2.1 gallons usable)

  • System dimensions: 14.57″ W × 5.46″ D × 12.54″ H

  • Tank dimensions: ~10.9″ diameter × 14.6″ H

  • Operating pressure: 40–100 psi

  • Operating temperature: 40°F – 100°F (4.4°C – 37.8°C)

  • Maximum TDS: 2000 ppm

  • Maximum hardness: 10 grains per gallon (170 mg/L)

  • System weight: ~8.9 lbs

  • Weight with full tank: ~25.5 lbs

Downloads

Replacement Parts

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NSF-Certified Product Options

NSF-Certified Options Available

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We Ship Canada-Wide

Fast Shipping Across Canada

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Secure Checkout

100% Secure Checkout

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Free System Recommendations

Free Expert Help Available

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Canadian-Owned & Operated

Proudly Canadian-Owned

Why Choose Reverse Osmosis?

  • Advanced Contaminant Removal

    RO systems reduce heavy metals, bacteria, viruses, and harmful chemicals.

  • Improved Taste & Odour

    Enjoy fresh, crisp water right from your tap.

  • Eco-Friendly

    Reduce single-use plastic bottles by filtering water at home.

  • Cost-Effective

    Save money long-term vs. bottled water or delivery services.

Not Sure What You Need?

We’ll help you choose the right reverse osmosis system for your home.

Just fill out the quick form below — we’ll get back to you with a personalized recommendation.

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Frequently Asked Questions

A reverse osmosis system uses multi-stage filtration — including a membrane — to remove up to 99% of contaminants like lead, chlorine, fluoride, nitrates, and more from your water.

What does an RO system remove?
 RO systems remove:

  • Heavy metals (like lead, mercury, arsenic)
  • Chlorine and chloramine
  • Fluoride
  • Sediment, rust, and dirt
  • Nitrates, sulfates, and more
  • Bad taste and odour

Most systems require:

  • Pre-filters: every 6–12 months
  • Membrane: every 2–3 years
  • Post-filters: every 12 months
    (Your system’s manual will have exact timelines.)

Modern RO systems are much more efficient than older ones. Some high-efficiency models use as little as 1 gallon of waste per 1 gallon of filtered water.

Many under-sink RO systems are designed for easy DIY installation and include all parts. If you’re not comfortable installing it, a plumber or handyman can typically do it in under an hour.

Yes — reverse osmosis removes most minerals. However, this does not make the water unhealthy. You can add a remineralization filter if preferred.

It depends on your water quality. RO systems remove more contaminants than standard carbon filters, making them ideal for those wanting the cleanest water possible.