The limescale protection filter for ironing water is a particularly fast external filter that can be used to filter tap water for ironing. Thanks to its limescale protection feature, it extends the lifespan of your iron. The salt protection effect improves steam quality. The rust protection effect helps maintain the components of the steam generator. The limescale protection granulate needs to be replaced as soon as it has completely turned brown. It is compatible with the ironing systems Laurastar Go +, Laurastar Go, Magic Evolution II, Premium Evolution II, and most commercially available irons.