RAINSHOWR-RCCQ-A  CQ1000 Filter Replacement Cartridge for Shower Filter Filter fits Rainshow'r CQ-1000 series Lasts 6-9 months, depending on water sediments and usage Filter contains specially-formulated Bacteriological (bacteriostatic) KDF media Removes 90% or more of free chlorine-Converts Chlorine into a harmless soluble chloride Crystalline quartz for energy enhanced shower "feel" and better lathering