Product Features
This Alkaline pH filter for Reverse Osmosis systems is an inline cartridge with mineral balls, calcite media, and corosex. The alkaline filter improves the pH value of the RO water ...

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Product Features
This Alkaline pH filter for Reverse Osmosis systems is an inline cartridge with mineral balls, calcite media, and corosex. The alkaline filter improves the pH value of the RO water which could be slightly acid after the reverse osmosis process. It also gives back healthy minerals such as ionized calcium, magnesium, sodium, potassium ion, which were taken away during the water purifying process.
This filter is capable of increasing the pH value of the RO water by 0.5 to 1.2, which helps minimize the fluctuations of your body's pH. The Alkaline filter replaces lost minerals from the RO process and restores these minerals back into the pure water. These minerals being restored will slightly increase the TDS value, normally between 10-20 ppm.
The minerals from the alkaline filter are natural calcium, magnesium, sodium, potassium ions, and others readily found in natural mineral water, which can be absorbed 100% by the human body. These ions are structurally smaller molecules which help the body take in more water and replenish lost water quickly. It also makes the water cleaner and healthier. Typically installed with RO systems to complement their absolute filtration quality.

Product Highlights
Fits most water filtration systems including RO systems, including name brand models.

What is included:
1 piece of Alkaline Remineralization Replacement Filter Cartridge

Specifications & Dimensions:

  • Length: 9 3/4", O.D. = 2 7/8"
  • 1/4" Fitting
  • Weight: 2 LBS
  • Service life: 6 months or 1500 gallons, whichever comes first

    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 counter top filters, filter cartridges and housings, RO coolers, and kitchen faucets and fittings. Our aim is to make high-quality drinking water accessible for all households. With affordable pricing, solid quality, prompt delivery, and top notch customer service, we hope to assist in bringing you great water for years to come.


  • BALANCED MINERALIZATION - Standard RO systems remove both harmful pollutants and beneficial minerals, often producing slightly acidic water. The FA15 Alkaline Mineral Filter restores essential minerals like calcium, magnesium, and potassium, balancing pH for healthier drinking water
  • ENHANCED TASTE & QUALITY - Enjoy clean, safe, and great-tasting water every time you turn on the faucet, with improved mineral content and a refreshing taste
  • UNIVERSAL COMPATIBILITY - Designed to be easily added to any under-sink water filter or RO system, making it a versatile upgrade for your filtration setup
  • RAISES pH LEVEL - Effectively increases the pH of RO water, helping to balance acidity for a healthier hydration experience
  • QUICK & SECURE INSTALLATION - The updated FA15 alkaline mineral filter features a push-fit quick connection for fast and hassle-free replacement. For installation assistance, refer to the user manual or reach out to our support team
  • BALANCED MINERALIZATION - Standard RO systems remove both harmful pollutants and beneficial minerals, often producing slightly acidic water. The FA15 Alkaline Mineral Filter restores essential minerals like calcium, magnesium, and potassium, balancing pH for healthier drinking water
  • ENHANCED TASTE & QUALITY - Enjoy clean, safe, and great-tasting water every time you turn on the faucet, with improved mineral content and a refreshing taste
  • UNIVERSAL COMPATIBILITY - Designed to be easily added to any under-sink water filter or RO system, making it a versatile upgrade for your filtration setup
  • RAISES pH LEVEL - Effectively increases the pH of RO water, helping to balance acidity for a healthier hydration experience
  • QUICK & SECURE INSTALLATION - The updated FA15 alkaline mineral filter features a push-fit quick connection for fast and hassle-free replacement. For installation assistance, refer to the user manual or reach out to our support team

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