KleenWater Dishwasher Water Filter, KW2510HW Under Sink Filtration System, Polyphosphate Filters for Hard Water and Cloudy Film Residue on Dishes and Glasses Scale inhibitor combats hard water and cloudy build-up on glassware Convenient package including all necessary installation components Ideal for commercial / residential dish washer systems Includes housing, bracket, wrench, connections and three cartridges