Solid undersink Reverse Osmosis filter: https://www.theperfectwater.com/home-master-tmafc-artesian-full-contact-reverse-osmosis-water-filtration-system.html
No electricity required. Just hooks to your water line under your sink. Leaves you with two faucets, your current faucet for unfiltered water, and the other being your flouride/chlorine free water for drinking/cooking.
Bit pricier than others but made in usa which is good
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