Rancilio One Group Reservoir Water Softener

Mini water softener, accepts 4 mm I.D. tube. 157 mm long. Rancilio replaced the old white #69000140 with the new DVG filter version “ETO” #69000313 ~ 02/01/2017. Instructions for use : Soak the fully submerged softener for 5 minutes Rinse the softener Reconnect the softener to the unit, keeping it fully submerged