The Calmag CalLytic Mini is designed to work in hard water areas, by protecting the central heating form limescale build up, keeping it working efficiently. The harder the water, the more minerals it contains, and as such the more likely it is to have limescale problems. A more efficient system allows for a warmer, longer life boiler system, allowing for lower fuel bills and less maintenance costs. As well as your heating system, the CalLytic will help protect household, kitchen and bathroom appliances from limescale build up, such as kettles and showers. The CalLytic Mini unit is available for use with 15mm, and 22mm pipework, and comes with 15mm-22mm pushfit fittings.