This is a photo of a Reverse Osmosis Water Purification System installed in Orange County by Pure Elements Water. Note how these systems fit under the sink. They need easy access because the filters (to the left in the photo) should be changed with some frequency. Here is a blog post about the ins and outs and proper maintenance of reverse osmosis and how we install them with a special remineralizer. If you don't know what that is or how important it is to a RO system, read this: https://pureelementswater.net/reverse-osmosis-systems-plus-remineralization/ We install a lot of these in Orange County CA area and Los Angeles too. https://goo.gl/maps/8aiLXUmCgVSgVxSR7 Here are 2 good videos to watch that answer common water filtration questions: Pure Filter for Tap Water https://youtu.be/tP7Sud3rreE Whole House Water Filter Installations https://youtu.be/cSAv3TzSBkM Call Us with Questions or for a Quote. We would like to help you come to the best decision for your needs and wants regarding the best water filter in Orange County.