iSpring RCS5T 500 GPD Residential and Light Commercial Tankless Reverse Osmosis Water Filter System with Side-Flow™ technology and 1:1 Drain Ratio

  • Designed to supply for large families, small restaurants and small businesses
  • Produces up to 500 GPD or 0.34 gpm under ideal conditions. The actual output could vary from 70% to 90% of the 500Gpd due to temperature, water chemical properties, and other factors. Filtered water output is about 10-15 psi on average.
  • Patented dual-flow RO membrane with 1: 1 drain ratio
  • 5 stages of filtration remove up to 99% of 1, 000+ pollutants including chlorine, fluoride, lead and more.
  • Light commercial capable - add a storage tank for light commercial settings
  • $599.00
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    • The pre-equipped powered booster pump helps RO production by increasing water pressure going into the side-flow membrane.

    • The RCS5T's Side-Flow™ membrane and booster pump combine to produce RO water on demand, eliminating the need for a storage tank.

    • The Side-Flow™ membrane draws in water from both sides while offering an exceptional 1:1 drain ratio.

    RCS5T Performance

    The RCS5T produces reverse osmosis water at up to 500 gallons per day, and allows it to function as a tankless system. The RCS5T can be used with water pressure sources as low as 25 psi, and has a built in pressure gauge. A power source is required for the booster pump, and a holding tank can be added to the system for a varienty of usage situations.


    Common uses

      • Residential Use
        The RCS5T's ability to thrive without a tank. You can also add a smallest pressurized tank to increase the flow without wasting cabinet space.

      • Restaurant Use
        Pair the system with a medium sized pressurized tank for supply of filtered water to keep up with the demands.
        (Good for small sized restaurants with under 20 seats)

      • Office Use
        Keep your employees well hydrated with all the RO water they can drink. Adding a small pressurized tank to supply of filtered water without delay.
        (Good for small offices with under 20 people)
      • Please note:

        The RO membrane capacity is affected by the inlet water pressure and water temperature.
        500GPD is the maximum rated production rate, not the recommended daily usage amount.
        The filter replacement schedule is based on average household water consumption of 3 gallons/day.
        Filter life decreases if installed in places that require large volumes or continuous water supply.


    Product Summary

    The iSpring RCS5T is a tankless reverse osmosis filtration system. The RCS5T's patented Side-Flow membrane produces RO water at a rate of 500 gallons per day while delivering 1: 1 waste to pure water ratio.

    The system removes chlorine, hardness, heavy metals, toxins, and a long list of other water impurities. For large families or light commercial use in small restaurants, offices, coffee Shops, or any small business.

  • Incoming Water Pressure: 30 PSI - 70 PSI
  • Operating water temperature range: 40 – 100 °F
  • Maximum TDS: 750 ppm
  • Membrane Filter Life: 2-3 years at 3 Gallons/day or 2600 Gallons

    Note: All flow rates stated on our reverse osmosis systems and membranes are assuming a water temperature of 77°F. Water temperature changes will affect the flow rate. For every degree F the temperature lowers, about 3% of product flow is lost. For every degree F the temperature increases, about 3% product flow rate is gained. This occurs because water with a higher temperature has a lower viscosity and higher diffusion rate, which makes it easier for the water to permeate the RO membrane. Lower feed water temperatures during the winter season will result in a decrease in flow rate.
    • Availability: In Stock
    • Model: RCS5T
    • Manufacturer: iSpring