Free tool
Reverse osmosis vs bottled water: your numbers
How this works
The calculator multiplies your weekly gallons by 52 and by your price per gallon, then compares that with the upfront and yearly costs you enter for reverse osmosis. It shows the first-year and ongoing difference, and how many months until the upfront cost is recovered.
Cost is only half the decision. A reverse osmosis system should be chosen for what it's certified to reduce in your water, sized for your household, and maintained on schedule. Learn more about reverse osmosis or get a written quote to plug in real numbers.
Questions
Why aren't there default prices?
Prices vary by home and system, and we don't publish them. Use your own receipts and a written quote so the comparison reflects your situation.
Does the installation cost count?
Include it in the upfront cost. Installation is quoted separately by the independent licensed plumber, so add both numbers together.
What should go in the yearly cost?
Filter and membrane replacements plus any service plan. Your quote should list the replacement schedule.
Start with an honest answer about your water.
Tell us about your home and water source. We'll recommend testing first, and only the equipment your results support.