Prolong the life of your washing machine with these Calgon Powerball 3-in-1 Tablets Choose from 75 and 150  Unbeatable 3-in-1 protection against limescale, residue and bad odours Cleaner laundry in every wash and safe for use on all types of fabrics Minimises energy consumption by keeping washing machine heating elements clean UK’s #1 water softener brand Buying Options:  17.49 pounds for 75 tablets  28.99 pounds for 150 tablets