Under-Sink & RO Systems: statistics & price report
Every number on this page is computed from the 65 under-sink & ro systems we track, their live Amazon prices, specs and review volumes, not from estimates or third-party reports. Data last refreshed June 22, 2026.
Headline numbers
- 65 models tracked
- 16 brands
- $307.99 median price
- 4.4★ average Amazon rating
- 44,749 owner reviews
- 17,400+ bought last month
Price distribution
| Cheapest model | $36.99 |
|---|---|
| 25th percentile | $237.66 |
| Median | $307.99 |
| 75th percentile | $419.99 |
| Most expensive | $1399.00 |
Spec ranges across the category
| Spec | Lowest | Median | Highest |
|---|---|---|---|
| Weight | 1.3 lb | 12.0 lb | 35.0 lb |
Brand share of the tracked set
- Waterdrop, 20 of 65 models (31%)
- iSpring, 12 of 65 models (18%)
- Apec Water, 9 of 65 models (14%)
- Berkey, 7 of 65 models (11%)
- Bluevua, 3 of 65 models (5%)
- Ecoviva, 2 of 65 models (3%)
