You might want a booster pump if your water pressure is low (common in some homes). That’s another $100 to $200. Or a UV light to kill bacteria (if you have a well). Add $150 to $300. It’s like upgrading from economy to premium economy—nice, but not necessary for most of us.
How Much Tankless Reverse Osmosis Systems Really Cost - Water
And oh, don’t buy the cheapest filters you find on Amazon. Trust me. I once bought a $15 filter pack, and my water tasted like plastic regret. Stick with reputable brands. Your taste buds will notice the difference.
