Acqua Brevetti MiniDue PC100 Liquid Water Conditioner Refill Pouch - 250Gram x 4 Features: Liquid water Conditioner refill pouch Comes complete with 4 pouches within 1 carton Provides quick fuss free exchanges No need to isolate the water supply Provide limescale and corrosion prevention Maintains system efficiency WRAS Approved The Acqua Brevetti MiniDue Limescale Prevention Liquid Water Conditioner is a cost effective compact alternative to your normal water softener solutions that use polyphosphates. It is 100% safe for drinking water with WRAS Approval and simply fits onto the rising main copper pipe or any pipe supplying a device such as a boiler. The MiniDue stops any clogging of sludge build up as well as the liquid provides a de-scaling action over time. These 250gram pouches (4 within a carton) provide a quick fuss free exchange as there is no need to isolate the water supply. They provide limescale and corrosion prevention whilst maintaining system efficiency.