iSpring F5-CUA4 Replacement set, Fits CU-A4 Ultra Filtration 5-Filter Annual Replacement Pack

About this item

• 1st Stage: 5 Micron sediment filter removes rust, sand, and solid impurities in the water to protect the delicate UF membrane. 2 replacement cartridges included in this pack.
• 2nd Stage: UF Hollow Fiber membrane that uses standard home water pressure to push water through a semi-permeable membrane. 1 replacement membrane included in this pack.
• 3rd Stage: KDF media (or Kinetic Degradation Fluxion Media) with activated carbon. Please be noted that this replacement filter pack does NOT include a replacement cartridge for this stage.
• 4th Stage: Post Activated Carbon Filter. Adopting coconut shell activated carbon with ultra-micron aperture, this carbon filter absorbs residual chlorine, and odor. 2 replacement cartridges included in this pack.