Head-to-head · updated November 9, 2026
SpringWell CF1 vs Aquasana Rhino
Short answer: on chloramine city water, or if you want the lowest running cost, buy the SpringWell CF1. It costs $633 less, about $102 less a year to keep, and carries a lifetime warranty. Buy the Aquasana Rhino if you want an independent NSF/ANSI 42 test behind the chlorine claim, or a higher peak flow for a busy house.
SpringWell CF1 Whole House Water Filter
8.9Very good · out of 10- KDF, catalytic carbon and a 5-micron sediment filter
- Media rated for 1,000,000 gallons or 10 years
- SpringWell names chlorine, chloramine and PFAS (PFOA, PFOS) among its targets
Better on 6 of 7 comparable lines · $1,365 on November 9, 2026
Aquasana Rhino Whole House Water Filter
8.7Very good · out of 10- Dual-tank upflow design rated for 1,000,000 gallons or 10 years
- Independently tested to NSF/ANSI 42 for up to 97% chlorine reduction
- Peak flow of 14.6 GPM; contaminant claims are measured at a 7 GPM rated flow
Better on 1 of 7 comparable lines · $1,998 on November 9, 2026
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Spec by spec
| Criterion | SpringWell CF1 | Aquasana Rhino |
|---|---|---|
| Calculated score | 8.9/10 | 8.7/10 |
| Checked price | $1,365 | $1,998 |
| Flow rate | 9 GPM | 14.6 GPM peak |
| Media life | 10 years or 1,000,000 gal | 10 years or 1,000,000 gal |
| Yearly upkeep | $45.57 a year | $147.96 a year |
| Contaminants claimed | Chlorine, Chloramine, PFAS, Sediment, Organic chemicals (pesticides, VOCs) | Chlorine, Sediment |
| Certification | None stated | Independent lab test |
| Drain and power | Neither needed | Neither needed |
| Connection | 1" | Not stated |
| Warranty | Lifetime | 10 years |
| Return window | 180 days | 90 days |
★ marks the better figure on that line (7 lines can be compared). Specs as published by the brands; prices checked on November 9, 2026.
What the numbers mean
These are the two big carbon tanks most buyers end up choosing between, and they are closer than their prices suggest. Both are rated for 10 years or 1,000,000 gallons, neither needs a drain or power, and both put a sediment filter in front. The difference is in what each brand puts in writing.
SpringWell writes more claims: chlorine, chloramine, PFAS (PFOA, PFOS), sediment and organic chemicals, plus a guarantee of chlorine and chloramine below detection for 6 years or 1 million gallons. Aquasana writes fewer claims but backs its chlorine figure with a test: up to 97% reduction, tested to NSF/ANSI 42. If your house is on chloramine, that settles it; Aquasana does not name it for the Rhino.
Over five years, the gap widens. The CF1 costs about $1,593 with its sediment packs; the Rhino about $2,738 with its pre- and post-filters at list price. Flow goes the other way: SpringWell states 9 GPM of service flow, Aquasana 14.6 GPM peak, with its contaminant claims measured at 7 GPM. A family with three bathrooms in use at 7 a.m. should look at the 12 GPM CF4 rather than the CF1.
Our pick for each kind of buyer
SpringWell CF1
The SpringWell CF1 costs $633 less than the Aquasana Rhino up front, at prices checked on November 9, 2026.
Read the review →SpringWell CF1
The SpringWell CF1 scores 8.9/10 against 8.7/10 with our published formula.
Read the review →SpringWell CF1
Replacement parts for the SpringWell CF1 cost about $45.57 a year, against $147.96 for the Aquasana Rhino, at each brand's shortest stated interval.
Read the review →SpringWell CF1
SpringWell claims 5 contaminant groups for the SpringWell CF1 (chlorine, chloramine, PFAS, sediment and organic chemicals (pesticides, VOCs)), against 2 for the Aquasana Rhino.
Read the review →Aquasana Rhino
The Aquasana Rhino is rated for 14.6 GPM peak against 9 GPM: more showers and appliances can run at once before pressure drops.
Read the review →SpringWell CF1
Warranty on the SpringWell CF1: lifetime; on the Aquasana Rhino: 10 years (head or valve, where there is one).
Read the review →Questions
Which is better, the SpringWell CF1 or the Aquasana Rhino?
With our published formula, the SpringWell CF1 scores higher (8.9 vs 8.7/10). The right pick still depends on your water and your house: see the picks by profile on this page.
What is the price difference between the SpringWell CF1 and the Aquasana Rhino?
On November 9, 2026, the SpringWell CF1 was $1,365 at SpringWell (core size (cf1), 1-3 bathrooms) and the Aquasana Rhino $1,998 at Aquasana (base system, no add-ons). Installation is extra in both cases unless you do it yourself.
Is SpringWell better than Aquasana?
For the CF1 against the Rhino, our formula says yes, 8.9 against 8.7, mainly on upkeep, price, warranty and the contaminant list. Aquasana wins on peak flow and on independent testing. The better buy depends on your water: chloramine points to SpringWell.