One of the biggest concerns for the owner of a coffee machine is definitely limescale, which can form in the coffee machine due to careless treatment of the water. The water softener from the Uni brand, which was developed for coffee machines with a water tank, where the water supply is provided by a silicone tube on which the softener can be attached, can help you prevent this threat. The softener is especially suitable for Rancilio Silvia, Gaggia Classic, Ascaso Dream/Steel, Lelit coffee machines. The softener has a capacity to soften 60 - 150 liters of water (depending on the water hardness).