The iFilters U300 was designed in California from NSF approved components and offers superior filtration at a lower cost compared to the leading competitor. The U300 Provides safe drinking water by combining a 3 stage filtration process that includes Sediment, KDF and Coconut Shell Carbonfilter with Submicron filtration technology for maximum filtration performance. The iFilters U300 system filters and reduces dirt, sand, silt, sediment, rust, chlorine taste & order, Cysts, lead, parasites (cryptosporidium & giardia), cloudiness (turbidity), THMs (trihalomethanes), VOCs (volatile organic chemicals), asbestos, chlorine, iron, hydrogen sulfide, lead, mercury, calcium carbonate, magnesium, chromium, bacteria, algae, and fungi. The U300 features a beautiful designer premium lead free faucet as well as a water hammer protection valve to protect your system from water hammer damage and leaks. All installation components are included. Replace filters every 6 - 12 months depending on usage and water quality. Replacement filters: IFD-U3PK.