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Sub Title: 25 to 100 GPD

Reverse Osmosis is one of the most convenient and economical methods of reducing dissolved solids in potable drinking water. That means drastic reductions in salts, sugars, proteins, particles, dyes, and bacteria. You get bottled water quality, at your fingertips 365 days a year for only a fraction of the cost. With our under-sink residential RO units, you get quality water right in your own home. Our systems filter out odors, bad tastes, and much more. So go ahead - enjoy your tap water.

SKU: RO-100 Category: Membrane & Reverse Osmosis Systems > Industrial & Commercial Reverse Osmosis Systems Brand: Pure Aqua Other Names: RO Purification System, TWRO Purifier Unit, Tap Water Reverse Osmosis Device, Under Sink Reverse Osmosis Machine
5 Stars 5.00 stars - based on 1 Reviews.

Complete and Ready to Install:

Stage 1

5 micron polypropylene sediment pre-filter to extract materials such as sediments, insects, asbestos fiber, rust, and particles down to 5 microns. (Replace every 6-8 months)

Stage 2

Double carbon block filters to absorb heavy chlorine and heavy chlorine byproducts such as chloramine, THM, and TCE. The two carbon blocks filter out organic matter from water without releasing carbon fines, and help protect the membrane. (Replace every 8-12 months)

Stage 3

U.S. made high rejection Thin Film Composite (TFC) RO membrane to reject a wide spectrum of impurities including Total Dissolved Solids (TDS), bacteria, and viruses down to 0.0001 micron. The product water is sent to a storage tank, while the reject water is flushed down the drain. (Replace every 2-4 years)

Stage 4

In-line GAC filter is used to remove dissolved gases, bad taste and odor from the water kept in the storage tank. This is the final treatment before consumption. (Replace every 1-2 years)

MODEL US-25 US-35 US-50 US-80 US-100 US-100BW
Water Production 25 GPD 35 GPD 50 GPD 75 GPD 100 GPD 100 GPD
TDS Reduction 95-97% 95-97% 95-97% 95-97% 95-97% 95-97%
Water Pressure 40 - 125 psi 40 - 125 psi 40 - 125 psi 40 - 125 psi 40 - 125 psi 40 - 125 psi
T.D.S (Maximum) 2,000 ppm 2,000 ppm 2,000 ppm 2,000 ppm 2,000 ppm 4,000 ppm
Temperature 40-110°F 40-110°F 40-110°F 40-110°F 40-110°F 40-110°F
pH 4 to 10 4 to 10 4 to 10 4 to 10 4 to 10 4 to 10
Hardness < 10 GPG < 10 GPG < 10 GPG < 10 GPG < 10 GPG < 10 GPG
For more information, please see our PDF in the "Download" tab

Standard Features
Available Options
  • Two pre and one post carbon filter
  • Replaceable TFC spiral wound membrane
  • Easy installation and compact design
  • 25 to 100 gallons per day output
  • 95-97% average salt rejection
  • 5 micron sediment pre-filter
  • Unit includes an attractive long reach faucet, feed and drain adapters, tank valve, and spanner wrench
  • 3.2 gallon storage tank
  • Total Dissolved Solids (TDS) RO comparator
  • Membrane pressure gauge
  • Automatic flushing device
  • 11 gallon storage tank
  • In-line UV lamp, 0.5-2.0 GPM
  • Booster pump or delivery pump
  • Air-Gap, colored, or designer faucets
  • RO unit with hot/cold water cooler
  • Private labeling

This product is designed for home projects and the most common contaminants in tap water. It is not recommended for anything above small-scale, residential usage:

Noticed a better taste of water after installation

Services: 5 Stars 5 Stars
Quality: 5 Stars 5 Stars
Delivery: 5 Stars 5 Stars

Very good quality RO that exceeded expectations. Noticed a better taste of water after installation.

by: Adam Totounji from