We got ours through Better Water Store an online water filter distributor. They had several models to choose from but we picked the Aquasana AQ-4000 counter top filter for $99.00. This works out around 9 cents a gallon. Quite a significant difference from the $3.50 a gallon for bottled water! Hook up was super simple. They had a short video on their website that explained how to do it, but we really didn’t need to watch it. It took around  3 minutes to hook it up, another  2 or 3 to run the filter and then we were getting filtered water that is better filtered than bottled for a lot less.