iSpring #F3-CUA4 3-piece Filter pack for 4-Stage Ultra-Filtration Water Filter System CU-A4

The filter pack F3-CUA4 includes:
1 x 1st Stage: 5 Micron Sediment filter that can effectively remove rust, sand, and solid impurities in water to protect delicate UF membrane. Lasts 6 months.
1 x 3rd Stage: KDF media (or Kinetic Degradation Fluxion Media) with activated carbon. KDF itself is known to kill algae and fungi, control bacteria growth, and remove chlorine, pesticides, organic matter, rust, unpleasant taste and odour, hydrogen sulfide, iron, lead, nickel, chromium, cadmium, calcium, aluminium, mercury, arsenic, and other organic compounds. When used with carbon, KDF can extend carbon filter life for up to 8 times. It also adds a healthy dose of zinc ions to the filter water. Lasts 6 months.
1 x 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. Lasts 6 months.