Please choose the correct ending to complete the given sentence: Home and Garden: [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.

Ending1: [substeps] Ro filters come from a ceiling piping system with a v-shaped filter shaft. This system attaches to a dishwasher's filtration system with a fan. Ending2: A professional full-service filter is top of the line for home filtering and flushing the water in your home. [substeps] The cost of the filter and filtration system is not too great to begin with, typically between $100 and $100 usd. Ending3: 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. Ending4: Nonetheless, you may still require a tank or other water system that can handle filtration. To check if ro filters are right for you, order them online and see if they fit under your sink.

Answer format: ending1/ending2/ending3/ending4