You'll need to assemble the filter mechanisms, and hook the system's hoses up to your tap beneath your kitchen sink. Many filtration systems also come with a small faucet that you'll need to install, typically by removing the side sprayer.
[header] How to filter fluoride from water [title] Purchase and install the filtration system. [step] Ro filters are large filtration systems that will need to be installed beneath your sink. While you can have a professional install the filter, they're relatively easy to install over the course of an afternoon.