These are automatic units designed to eliminate or reduce water hardness through ion exchange. They consist of a resin column with a valve and automatic programmer, and a separate tank for the brine. WORKING CONDITIONS: Working pressure: 2 to 8.5 bar. Optimal pressure: 3 to 5 bar. Temperature: 1 to 40 °C. Electrical supply: 100-240 Vac / 50-60 Hz. GENERAL CONSTRUCTION DATA: Fibreglass reinforced polyester bottle with internal food-grade PE lining. Brine tank made of polyethylene. High-quality food-grade resin load. Automatic valves. Fast-rotation motor. Robust piston with optical positioning. Built-in water meter. Regeneration control via microprocessor, allowing for different types of regeneration: by volume, by time, mixed, or delayed volume. Dimensions (mm): A: 1136 B: 803 C: 470