Advantay 1/2" M x M Brass Acqua Brevetti MiniDue Liquid Water Conditioner Features: Liquid water conditioner Guaranteed control of limescale and corrosion prevention 100% safe for drinking water Liquid also provides a descaling action over time. Guaranteed dosage No power required Compact design Easy fit refills DIY refill swap Food grade polyphosphate WRAS Approved Suitable for point of use or small dwelling - 20ltr per min Comes complete with 250g refill pouch 2 Years Warranty as Standard 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.