Calmat Plus is designed for commercial or residential applications up to 3 in. pipes and when a higher maximum water flow capacity is required. Calmat Plus is a unique alternative to water softeners that solves hard water problems without using chemicals or salt. It is totally maintenance-free and is very simple to install, no tools or plumbing are needed. It is an eco-friendly water treatment system that protects your piping system and appliances against scale deposits and rust. Calmat prolongs the lifespan of household appliances. Calmat exclusive electric impulse technology is based on the principle of physical water treatment; changing the crystallization process of the liquid calcium and in this way, the hard scale loses its adhesive power. Calmat works independently from the water velocity, unlike other systems that use magnetic fields.