The Original All In One Filtered Shower head was the first to incorporate advanced filtration technology into a multi function shower head High Flow Filter Model A1C 3 way Massaging Spray High Strength Housing Triple Plated Finish Cartridge Life Rating 6 Months Additional Details ------------------------------ Product description: The Original All In One Filtered Shower head was the first to incorporate advanced filtration technology into a multi function shower head High Flow Filter Model A1C 3 way Massaging Spray High Strength Housing Triple Plated Finish Cartridge Life Rating 6 Months