The Caple Puriti filter is discreetly installed under the sink. It will be easily accessible for changing which will need to be done about every 6 months. This a straight forward process that does not require any tools. Compared to other filteration systems on the market, the Caple Puriti can last 4 x longer. Filtering up to 6,000 litres compared to only 300-1,500 litres.