So, here’s the deal. A basic under-sink reverse osmosis system can run you anywhere from $150 to $400. That’s it—less than a fancy espresso machine! If you want a whole-house system (for that “drink from any tap” luxury), expect to pay $1,000 to $4,000 installed.
Wait, why such a big range? It’s all about features and flow rate. A budget system might take a minute to fill a glass, while a premium one feels like a fire hydrant you can control. Your choice!
Installation & Filters: Hidden Costs? Not Really
Here’s where people get nervous—installation fees. Do-it-yourself? Free! Most countertop systems just plug in. For under-sink models, hiring a plumber might cost $100 to $200 extra.
Then there are replacement filters—don’t worry, they’re not wallet-breakers. Annual filter costs sit around $50 to $150. That’s less than two fancy dinners out. And you get silky, crisp water every single day. Totally worth it.
