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The Pentek WS-20BB Water Softening Resin Filter Cartridge provides a convienent cost effective way to soften your water at the exact point of need using FDA grade softener resin. The WS-20-BB uses cation exchange to reduce hardness and scale deposits in your water. Part number 155321.
The Pentek WS-20BB Specifications:
The WS20-BB should be used at Point of Use only. This filter can be used in any Big Blue Filter housing or other housing by Culligan / Pentek / Ametek / US Filter / Cuno and others that require a 20" filter. To view the full specifications of this filter please see the WS-20BB product guide.