Updated June 2026 · 47 systems evaluated
Your water has a problem.
The right whole house water filter is the answer.
We price the full install, read the certification fine print, and stamp every system BUY or SKIP — with the math on the table. No fake lab coats. No 47-product listicles.
The short list
This month's verdicts
Top pick — city water
SpringWell CF1 Whole-House Carbon System
- Best for
- Chlorine, taste & odor, 1–3 bath homes
- Real installed cost
- $1,050–$1,800
- Spec that decides it
- 1,000,000-gal media life
Top pick — well water
SpringWell WS1 Air-Injection Iron Filter
- Best for
- Iron staining, sulfur smell, manganese
- Real installed cost
- $2,100–$3,200
- Spec that decides it
- Removes 7 ppm iron, 8 ppm H₂S
The famous one
Aquasana Rhino EQ-1000
- Best for
- Light-duty city water, smaller homes
- Real installed cost
- $900–$1,600
- Spec that decides it
- Tank swap needed at 10 yrs
Start with your water, not a product
Well water, fixed
Iron stains, rotten-egg smell, sediment — match the contaminant to the right media, not the loudest brand.
39,000 owners search this every month
PFAS, handled honestly
Which certifications actually cover PFAS reduction, what whole-house systems can and can't do, state by state.
The fastest-growing water worry in America
Head-to-head verdicts
SpringWell vs Aquasana. Kind vs iSpring. Same specs, same math, one winner — and we link to both either way.
No loser-bashing. Just spec sheets.
Why trust a verdict
Every claim traces to a number
Flow rate at rated service. Media volume in cubic feet. NSF/ANSI certification scope — not the marketing version. The installed price including the plumber, not the teaser price. When a spec is missing from a manufacturer's sheet, we say so instead of guessing.
Read the method →| Checkpoint | What we pull |
|---|---|
| True capacity | Media life in gallons, not years |
| Flow honesty | GPM at service flow vs. peak claim |
| Cert scope | Which contaminants, which standard |
| All-in cost | System + install + 10-yr media |
| Failure mode | What breaks first, what it costs |