Spring Side-Flow™ 500GPD Reverse Osmosis (RO) Membrane Replacement 13.5” x 2.8”, Fits RCS5T

  • Advanced SIDE-Flow™ 500GPD membrane saves 60% of water, with 1:1 drain to clean water ratio
  • Low-pressure and high-capacity membrane for tankless direct ro output
  • Fits iSpring light commercial RO system RCS5T
  • Rejects wide spectrum of impurities down to .0001 micron
  • Tolerance to a wide range of operating conditions
  • $159.99
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    Product Description


    This is the key component of the iSpring residential and light commercial reverse osmosis water filtration system, usually used in the 4th stage. It has very tiny holes, which allow only water and a few gases to pass through under certain pressure thus produces virtually pure water. The technology has been used in spaceships to recycle water for astronauts. It is effective in reducing hardness, heavy metals, toxins, free chlorine, bad taste, odor, and hazardous chemicals. Depending on inlet water quality and usage, it needs to be replaced every 24 months or 2600 gallons of water.

    State-of-the-art Side-Flow™ 500GPD membrane enables source water coming in from BOTH sides of the roll, maximizes contact of water with the membrane, and increases water production by 15%, while reducing wastewater by 60% with a 1:1 drain to clean water ratio.

    Why iSpring


    Located in Alpharetta, Georgia for over a decade, iSpring water systems LLC is a family-owned company specializing in reverse osmosis water filtration systems. Our products include residential and commercial reverse osmosis (RO) systems, whole house water systems, ultrafiltration systems, shower, faucet, and countertop filters, filter cartridges and housings, and kitchen faucets and fittings. Our aim is to make high-quality drinking water accessible to all households. With affordable pricing, solid quality, prompt delivery, and excellent customer service, we hope to assist in bringing you great water for years to come.


    • Availability: In Stock
    • Model: MS5
    • Manufacturer: iSpring