The Hydronix CB-25-2005 CB Series Filter reduces sediment, certain VOCs (volatile organic compound), chlorine taste and odor from drinking water. This filter has great chlorine removal capacity competitive with any of the best carbon block filters. The CB-25-2005 C is manufactured with high purity coconut shell activated carbon and provides an exceptional cost-to-performance value. With exceptional chlorine reduction, and great dirt-holding capacity the Hydronix CB Series is the best in class. The CB-25-2005 is ideal for Point-of-use (POU) and reverse osmosis applications. The cartridges can be used in a wide range of applications such as residential, food service, commercial and industrial. The Hydronix CB-25-2005 CB Series Carbon Block Filters are ideal for replacing traditional GAC (Granular Activated Carbon) and PAC (Powdered Activated Carbon) filters in applications where high chlorine reduction is needed. The CB-25-2005 Filter has Long life and is designed for Superior Performance. NSF Standard 42 Component Certified.