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If your need is for an economical, compact, flexible, yet high-performing water filtration system, the iSpring CU-A4 is an excellent choice.


Superior Performance
The advanced 4-stage design, which includes both Ultrafiltration and KDF/GAC stages 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. Noted: This system does not affect TDS as Reverse Osmosis System does.

4-Stage Ultra Filtration System
PP Sediment Filter ((5 microns) removes larger particles like rust, sand, dirt. ) Ultra Filtration Filter (contains hollow fiber membrane technology with a pore size of just 0. 1 micron) KDF and GAC Filter (provides much better control of particularly problematic contaminants including chloramine, hydrogen sulfide, metals, and other compounds). Fine Activated Carbon Filter (provides final polishing before the purified water).

Simple And Flexible
NO WASTE WATER and No storage water tank required. The CU-A4 provides highly effective water filtration for any number of clean-water needs – at the sink, in the refrigerator, for coffee makers, and more.

Come with a premium Chrome finish drinking water faucet. All filters, tubing, and other water-contacting parts are manufactured to comply strictly with NSF/ANSI standards for safety and water quality.

Easy-To-Install And Replace Filter
Push to connect fittings with color-coded tubing simplify the installation process. Filter replacement is designed for ease. No need to disconnect hoses or water lines. Just Twist On / Twist Off filter cartridges make changing filters a snap. Filter life: 6 -12 months, depending on your source water and usage.


  • Brand: iSpring
  • Dimensions: 10.63 x 4.33 x 12.6 inches
  • Weight: 4.4 lbs
  • Color: White
  • Membrane: 0.1 Micron UF Membrane
  • Installation: Under Sink or Inline w/ Pressure Regulator
  • Chlorine Reduction: 99%
  • Asbestos & Lead Reduction: Yes
  • PFOS/PFOA Reduction: Yes
  • Tank Free: Yes
  • Faucet: Air Gap


  • Filters
  • Parts
  • Tubings
  • Faucet
Weight 1 lbs