Water Filtration System Pricing
Analysis of 15,315 eBay listings for water filtration systems to determine current market value.
What you'll usually pay
💡 Used ones cost about 68% more here.
👉 In short easy summary
The best value is found in shower filters and Kenmore branded units, which trade significantly below the market median. Conversely, UV Sterilization and Under-Sink systems command a premium, trading up to 57% above the median.
💚 Best value for your money
Price by brand
Why? Prices vary by brand recognition, with Culligan at 82.24 and Kenmore at 28.9.
Price by type
Why? Complexity of installation drives cost, from shower filters at 30.15 to under-sink systems at 125.25.
Price by filtration method
Why? Technology level impacts price, with UV Sterilization reaching 125.62 compared to carbon/charcoal at 49.04.
🛒 Some on sale right now
Common questions
What is the median price for a new water filtration system?
The median price for new units is 65.5.
Which filtration method is the most expensive on average?
UV Sterilization is the most expensive method with a median price of 125.62.
How do whole house systems compare to the overall market median?
Whole house systems have a median price of 108.52, which is 36% above the market median.
How we got these numbers
Worked out from 200 live eBay listings (price range $15–$281, odd outliers ignored). These are asking prices, so use them as a guide. Last checked July 25, 2026.