The cost of water treatment systems varies widely depending on the type, capacity and features. Basic jug or countertop filters start from a more affordable price point, while under-sink and whole-house systems can be more of an investment due to their larger size and more advanced filtration technology. When deciding on a tap water filter system, it’s important to also consider the long-term costs of replacement filters and maintenance. At the same time, remember to factor in the potential cost savings. Plenty of offices and households drinking store-bought water find installing a filter system actually saves money overall! Some people showering in or drinking unfiltered tap water may also find many of their health concerns disappear, saving them from unnecessary medical bills.