Products Calgon offers you a range of anti-lime products for the maintenance of your machine: Calgon 3in1 removes limescale and removes residue for a machine that remains efficient and clean, wash after wash. Calgon 3in1 Powder Calgon 3in1 Gel Calgon 3in1 Tablets 15 Tabs Calgon 3in1 Tablets 30 Tabs Calgon 3in1 Tablets 45 Tabs Calgon 3in1 Tablets 75 Tabs NEW Calgon Anti-Bacterial Gel