The GE RO you linked will do the job. I'm not a fan of proprietary filters or gimmicky housing setups. A remineralizer filter goes in the line from the tank to the faucet. Many websites including Amazon sell them. If you're on city water I'd go with a basic 3 stage setup. You can add a remineralizer to the end of that and if you don't get your year out of the first filter, you can add a sediment filter before. Lots of people go big and get a system that tries to be too many things. You just spend more time, money, and frustration dealing with extemporaneous stuff. https://www.amazon.com/Pentek-GRO-2550-Filtration-High-Recovery-Encapsulated/dp/B09NL5NNLS There's a damaged package one for $135 I recommend going cheap and deciding the RO life is for you. You can try that for the first 6 months and then swap in a couple nicer carbon block filters like https://www.amazon.com/Chloramine-Reduction-01-250-10-MATRIKX-Replaces-01-250-125-975/dp/B08NK7JSZL and still be under the cost of the one you linked.