The new Watts ChloraBlock Filter is specially designed to reduce chloramines using coconut shell catalytic carbon block.The filter’s enhanced catalytic functionality has 4 times the capacity for reducing chloramines than standard carbon blocks and 2 times the capacity for reducing chlorine over standard activated carbon. Innovative Features & Benefits:• Large quantity of catalytically-active Nitrogen groups for highly effective chloramine reduction• Manufactured from advanced, high-performance media• Unique binder system maximizes availability of catalytic sites• 1 µm nominal ltration• High dirt holding capacity• No carbon ne release• Low pressure drop• Ideal for commercial & industrial POU and POE applications• Greater carbon surface area• Backed by Watts 40+ years of water quality expertiseFilter Type: Standard WallOuter Diameter: 4 1/2" Length: 20" Micron Rating: 1 NominalFlow Rate: 7 GPMChlorine Reduction: > 200,000 gal @ 4 gpmChloramine Reduction: 24,000 @ 2 gpm and 12,000 @ 4 gpm