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Home > Drinking Water Systems > Isopure Water Reverse Osmosis Systems

Isopure Water (ISO-RO4) 4 Stage Reverse Osmosis System 50 GPD

Isopure Water (ISO-RO4) 4 Stage Reverse Osmosis System 50 GPD


Retail Price:: $159.99

Your Savings:: $15.00

Your Price: $144.99


Availability: Ships within 24-72 hours

Choose Options

Quantity Discounts
Quantity Price
2 - 5 $137.74
5+ $129.78


Provides the best protection for well water or city water. Use the same technology as most bottled water companies and produce your own bottled water in your kitchen. Removes over 90%-99% of all TDS (total dissolved solids) and 99% of all organics.

  • Easy to install
  • Affordable replacement filters
  • Great tasting water


  • Dimensions: 15"L x 6"D x 18"H RO Unit; 11" x 14" Storage Tank
  • Unit Weight: 20.5 Lbs.

Recommended Potable Water Supply Condition:

  • Max. Total Dissolved Solids (TDS) : <2,000 ppm
  • Water Pressure Range : 40-100psi (2.8 bar) required
  • Min. Inlet Water Pressure : 40 psi (2.8 bar) required
  • Water Temperature Range : 40-85°F (4.5-30°C)
  • Water pH Range : 4-11
1st Stage : Sediment Depth Filter
Part Number: 1227867-V (5 Micron)
(Polypropylene Melt-blown Depth Filter)


  1. Dimension: 2.5" Dia. x 10"
  2. Max. Flow : 1.0 GPM
  3. Max. Pressure : 125 psi
  4. Max. Temperature : 125°F (52°C)
  5. Service Life : 5,000 gallons


  • 100% Polypropylene NSF Certified Material
  • Particle Removal (dirt, sediment, rust particles, and other particulates)
  • Improving Water Clarity, Taste, and Odor
  • Greater Dirt-holding Capacity with Multi-layers Gradient Design
  • High Flow Rate, Low Pressure Drop
2nd Stage: Coconut Shell Carbon Block Filter
Part Number: HQCBC-10-5 (5 Micron)


  • Dimensions: 2.5" Dia. x 9.75"
  • Max. Flow: 1.0 GPM
  • Max. Pressure: 125 psi
  • Max. Temperature: 125°F (52°C)
  • Service Life: 2,500 Gallons


  • 100% Coconut Base Carbon NSF Certified Material
  • Chlorine, Odor and Bad Taste Removal
  • High Adsorptive Capacity and Efficiency
  • Great Removing Volatile Organic Carbon Compounds (insecticides and/or pesticies)
  • No Channeling
  • No Release of Carbon Fines
  • High Flow Rate, Low Pressure Drop
3rd Stage : RO Membrane Filter
Part Number : VX30-1812-50 (50 gallons per day)


  • Dimension: 1.75" Dia x 11.74"
  • Up to a 98% Rejection Rate*
  • Polyamide Thin-Film Composite
  • Max. Pressure: 150 psig
  • Max. Temperature: 113° (45°C)
  • Max. Feed Flow Rate: 2 GPM
  • Max. Feed Silt Density Index (SDI) : 5
  • pH Range: 2-11
  • Service Life: 2-3 years


  • Reduce TDS value in water
  • Reduce 98% of dissolved minerals, salts and other chemical contaminates in potable water supply*
  • Remove most harmful chemicals
  • Reduce E.coli in potable water
  • Remove most heavy metals
  • Reduce TDS, Barium, Cadium, Hexavalen & Trivalent Chromium, Copper, Lead, Radium 226/228, Selenium, Fluoride, Nitrite, Nitrate (see owner manual for more details)
4th Stage : Inline Polish Filter
Part Number : AIC RO
(Granular Coconut Shell Carbon: 12x40 mesh size)


  • Dimension: 2" Dia. x 10"
  • Max. Flow: 0.5 GPM (1.9 LPM)
  • Max. Pressure: 100 psi
  • Max. Temperature: 100°F (38°C)
  • Min. Temperature: 35°F (2°C)
  • Service Life: 2,500 gallons


  • Chlorine Taste and Odor Reduction
  • NSF Certified and Particulate Class V
  • Simple Basic Design with Best Efficiency
  • High Grade NSF Certified Coconut Shell Carbon
  • Include pre- and post filter pad
  • No channeling or clogging
  • 1/4" NPT Threaded connections

Related Info



Questions & Answers

Q: Hi, May I know what brand is the Booster pump used on this unit?( Say I choose the add the booster pump on the options ) please provide me in full details( What included in this booster pump, Solenoid valves, wires, tank pressure switches and fittings???
Asked by:  - 11/28/2013 (Submit an answer)
A: We use Aquatec 6800 and the PSW240 switch.
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