This high quality filter reduces: - chlorine taste and odor - sediment, dirt and rust - bacteriostatic - cartridge: 4CB5-K Cartridge [AMERICAN-MADE QUALITY] - All Swift Green Filters are proudly manufactured in the USA. [INDUSTRY-LEADING FILTRATION] - Produced using coconut carbon which contains 50% more micro-pores for reducing contaminants compared to traditional carbon filters sources. [ECO-FRIENDLY] - All Swift Green Filters use fully recyclable components and are manufactured using innovative, eco-friendly methods. Certified by IAPMO Research and Testing to NSF/ANSI 42 for the specific performance claims verified and substantiated by test data.