BA cartridge is a specialized cartridge for efficient removal of excessive dissolved iron (initial content up to 5 mg/l) by base precipitation. Calcite natural material is used as a filtering medium. It is used in Geyser filters intended for water with high iron content.
BS cartridge is intended for removing from water excessive hardness salts with a food-grade ion-exchange resin. The capability of the ion-exchange resin to remove hardness salts is restored after simple regeneration with a sodium chloride solution. It is used in Geyser filters for purification of hard and very hard water.