Feeder Dispenser, Active Ingredient Phosphoric Acid, Cleaner Functions Restores the Softener Beads and Control Valve Parts to Peak Efficiency and Maintains the Life of the Unit, Concentration Type Concentrated, Container Size 1 oz, Container Type Bottle, Features Installs Inside or Outside of the Brine Tank, Feeds Automatically, For Use With Water Softeners 1RV72, 1RW86, 1RV25, 1RVZ4, 1RWB2, 1RVZ3, 1RWA5, 1RVZ7, 1RWA6, 1RVZ9, 1RWA1, 1RVZ6, 1RWA7, 1RWA8, 1RWA9, 1RWB1, 1RVZ8, Form Liquid