Hydrologic Tall Boy w/Upgraded KDF85/Catalytic Carbon FilterThis instant de chlorinator and sediment filter come with an upgraded KDF85 Catalytic Carbon Filter by Hydrologic. It is highly effective in removing chlorine, chloramine, hydrogen sulfide, and other harmful contaminants from water. In addition, the filter is highly compatible with the Tall Boy water filtration system. Features: Long filter life (15,000 gallon filter) Use with Tall Boy water filter KDF85 media Activated catalytic carbon Reduces the