I purchased this online with 4 xL cermic filters which each filter cost me around $150 plus the stainless steel system.I paid total of $550 to purchase this system brand new .i no longer needed and selling it . Filtration it’s perfect and water taste excellent like new .I don’t think you need new filters for years.of course it’s a used item and you should see some signs of used overall but it’s clean and perfectly fine to use it .