iSpring CU-A4 4-Stage Compact, Under Sink / Inline Drinking Water Ultra Filtration System for Sink, Refrigerator and RV

  • 4-stage multipurpose water filtration system for water. The advance 4-stage design, which includes both Ultrafiltration and KDF/GAC stages removes up to 99% of 700+ contaminants including LEAD, Chlorine while keeping healthy minerals. Note: This system does not reduce TDS as Reverse Osmosis system does.
  • The 0.1 micron Ultra Filtration (UF) stage removes up to 99% of most problematic pollutants such as chlorine and chlorine treatment by-products, lead, arsenic, and much more while retaining healthy minerals.
  • The CU-A4 provides water filtration for unlimited free bottled water quality at your kitchen sink. With the extra part ICEK, it can be connected to the refrigerator, coffee maker and etc.
  • All filters, tubing and other water-contacting parts are manufactured to comply strictly with FDA and NSF/ANSI standards for water quality. Simple to install and simple to maintain, CU-A4 Easy-Twist Cartridges simply twist on and off.
  • iSpring supports all of its products with customer tech support. In addition to our 1-year limited warranty, we offer lifetime technical support provided by our dedicated support team based in Atlanta, GA and available at (678) 261-7611.
  • $169.99
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    How It Works

    The CU-A4 is a multi-layered filter system that provides protection against a wide range of contaminants while retaining healthy minerals.
    Stage One: A Polypropylene (PP) sediment filter (5 microns) removes larger particles like rust, sand, and dirt
    Stage Two: A Ultra Filtration Filter contains hollow fiber membrane technology with a pore size of just 0. 1 microns.
    Stage Three: The third stage is a hybrid Kinetic Degradation Fluxion (KDF) Media and activated charcoal (GAC) filter. The KDF media sets the CU-A4 apart from other systems by providing control of particularly problematic contaminants including chlorine, hydrogen sulfide, iron, lead, nickel, chromium, cadmium, calcium, aluminum, mercury, arsenic, and other compounds.
    Stage Four: The last fine activated carbon (GAC) filter provides final polishing before the filtered water is delivered to the faucet, removing any possible residual chlorine, tastes or odors.
    • Availability: In Stock
    • Model: CU-A4
    • Manufacturer: iSpring