Although you may have soft water in your area, it is still recommended to install a water softener for even the slightest of calcium lime deposits that can accumulate in your commercial espresso machine.This water softener is special because it is rechargeable with salt and the unit does not need a filter cartridge replacement. This option is not only cheaper but also more environmenatlly friendly as it reduces the amount of landfill waste. Working pressure: min 1 bar max 8 bar temperature: min 4 c max 15 c flow rate: 1000 lt h regeneration salt: 1.5 Kg nacl dimensions wxh , cm: 22,35 x 49.98. Brand: De Vecchi Shipping Cost: DKK 0.00