iSpring F4AK 6-month Replacement Filter Set For 6-Stage Reverse Osmosis Water Filtration Systems

  • Made of 100% Melt-Blown Polypropylene, 4-layer filtration
  • 4.5" (Diameter) x 20" (Length)
  • Fits 20" Big Blue Water Filter Housings, such as Culligan whole house filter
  • Individually wrapped for freshness
  • 20 Micron rated
  • $39.99
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    Product Highlight

    • Tested by independent third-party to meet NSF/ANSI Standard, high capacity replacement filters for 6-stage reverse osmosis systems

    • Standard sized 10" x 2.5"

    • Fits iSpring RCC7AK, RCC7P-AK, and most other RO systems that use standard sized filter housings including Flowmatic, PuROLine, Crystal Quest, and Apec

    • Includes 1x FP15 sediment filter, 1x FG15 GAC filter, 1x CTO carbon filter, and 1x FA15 alkaline remineralization filter

    • Each filter is individually wrapped to preserve freshness and extend shelf life

    • The upgraded alkaline filters come with quick connections and fittings. Please attach the included fittings to the filters and connect the tubings to the fittings. You may discard the old compression fittings.


    Product Description

    The F4AK 6-month filter pack comes with a total of 4 replacement filters so the filters can be changed on schedule for 6 months.

    1x 5 Micron 10" Sediment Filter (1st Stage, #FP15): Removes dirt, rust, sand, and other particles. Replace approximately every 6 months.

    1x 5 Micron 10" Granular Activated Carbon (GAC) Filter (2nd Stage, #FG15): Absorbs chlorine, halide, organic contaminants, odors, and other impurities that contribute to bad tastes and odors. Replace approximately every 6 months.

    1x 5 Micron 10" CTO Carbon Block Filter (3rd Stage, #FC15): Further removes any remaining chlorine, tastes, and odors. Replace approximately every 6 months.

    1x Alkaline pH Remineralization Filter (6th Stage, #FA15): Adds 0.5 - 0.8 PH back to the water. Also adds back healthy minerals such as ionized calcium, magnesium, sodium, and potassium which were removed during the RO process. Replace approximately every 6 months.

    Note: The 6-month filter supply does not come with an RO membrane, as the membrane only needs to be changed every 2-3 years. To get a filter pack that includes the membrane, take a look at the 2-year F19K75 or 3-year F28K75 supply pack.

    This filter pack fits the iSpring RCC7AK, RCC7P-AK, and most other RO systems that use standard sized filter housings including Flowmatic, PuROLine, Crystal Quest, and Apec.and Apec.
    • Availability: In Stock
    • Model: F4AK
    • Manufacturer: iSpring

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