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iSpring FA15X6 iSpring Alkaline Water Filter Replacement Cartridge, Pack of 6

Regular price $126.99
Sale price $126.99 Regular price $126.99
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In stock · Ships within 1–2 business days

iSpring FA15X6
$126.99

Features

Product Description

Size: FA15 Alkaline Filter

Product Features

This Alkaline 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 filtering process. This filter is capable of increasing the pH value of the RO water by 0.5 to 0.8. 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. These ions are structurally smaller molecules that help hydration. 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:

6-piece of Alkaline Replacement Filter Cartridge

Specifications & Dimensions:
  • Length: 9 3/4", O.D. = 2 7/8"
  • 1/4" Fitting
  • Weight: 8 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 drinking water accessible to all households. With affordable pricing, solid quality, prompt delivery, and customer service, we hope to assist in bringing you great water for years to come.

  • AvailabilityIn Stock
  • Model FA15X6
  • Manufacturer iSpring
  • Product Weight 10.0 LB

iSpring vs Other Brands

Feature
NSF/ANSI 58 Certification
Yes (full system certified)
Often partial or none
Verified performance & safety
Filtration Stages
Clear 3/4/5/7 stage options
Usually 4-5 stages
More complete options
Alkaline Remineralization
Available (RCC7AK/RCC7AK-UV)
Rare or expensive add-on
Better taste & pH balance
See-through 1st Stage Housing
Yes, smart flow sensor
Unavailable in most systems
Easy visual inspection
Daily Production
75 GPD (reliable output)
Often lower or overstated
Reliable daily production
Replacement Filters
Widely available & affordable
Hard or harder to find
Lower long-term cost
Installation
DIY friendly, no plumber needed
Can be more complex
Faster & easier set-up
Support & Warranty
Responsive support + solid warranty
Varies widely
Better post-purchase experience
Value for Money
High performance at competitive price
Higher price for similar specs
Better cost-effectiveness

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