The cost of a whole-home water filtration system depends on many different factors, including the type of filtration system you choose and the size of your home. If you’re using a point of entry system, you need to account for your family’s water use and make sure you’re buying a filtration unit that can handle the amount of water needed.
The most expensive option for a water filtration system for the home is a reverse osmosis system. This system is great for filtering water and removing up to 99.9% of all contaminants, but it’s more complex to install and has more parts than a simple carbon filter.