ASIN B078YCMPL6Image via Amazon
iSpring F7-CUA4 2 Years Filter Set for Ultra-Filtration Water System CU-A4
- 1st Stage
- 2nd Stage
- 3rd Stage
- 4th Stage
$142.99
Price as of Oct 16, 2026, 7:47 AM UTC. Prices and availability are subject to change. The price shown on Amazon at the time of purchase applies.
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Key features
1st Stage
5 Micron sediment filter that can effectively remove rust, sand, and solid impurities in the water to protect the delicate UF membrane.
2nd Stage
State-of-the-art UF Hollow Fiber membrane that uses standard home water pressure to push water through a semi-permeable membrane.
3rd Stage
KDF media (or Kinetic Degradation Fluxion Media) with activated carbon.
4th Stage
Post Activated Carbon Filter. Adopting fine coconut shell activated carbon with ultra-micron aperture, this carbon filter absorbs residual chlorine, organics, humus, and odor.
iSpring F7-CUA4 2 Years Filter Set for Ultra-Filtration Water System CU-A4
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