The Aquatru Carafe Reverse Osmosis water filter is a stylish and efficient appliance for filtering your tap water. providing clean and pure water through the reverse osmosis filtration method. This pack includes one filter set. Perfect for improving the taste and quality of your water. I use in London. Filters used only a handful of times and so still just under a years worth of use. Selling as I personally found it to be a bit too noisy for my small flat. Aquatru can’t accept it back as it’s been used.