The Replacement Water Purifier Filter is compatible with the Cold Water Dispenser. The Water Purifier Bottle's huge 20 litre capacity purifies its contents through a six stage advanced filtration system with a replaceable porcelain filter containing activated carbon with silver ions silex sands and mineralisation balls. The included water purifier bowl and filter purifies sterilises absorbs and filtrates arsenic barium cadmium chromium lead copper mercury selenium nickel thallium antimony and beryllium the harsh metals commonly found in tap water as well as impurities germs chemicals and chlorine. The porcelain filter will also sterilise the water from bacteria and increase oxygen levels within the water. Each filter lasts one year or 3000 litres of water. Extra replacement filters are sold separately. Long term purified drinking water can positively adjust body functions improve the immune system prevent viscera calculus clean the inside of blood vessels stabilise metabolism and prevent dermatosis. It can also prevent mineral element shortage by drinking general tap water. The benefits are truly a bargain and the best part is you will save money because the water purifier bottle is refillable with tap water meaning you do not need to exchange the bottles. All that is needed to maintain the Cold Water Dispenser is approximately one replacement filter per year its that simple. Experience the difference get truly refreshed with our Cold Water Dispenser.