Whirlpool WHES40 vs AquaTru Classic
Different approaches to water treatment compared side by side. Best for various water quality situations.
Whirlpool WHES40
Salt-Based Water Softener
$550
VS
AquaTru Classic
Countertop RO System
$450
Whirlpool WHES40 and AquaTru Classic are different types of water treatment systems. The right choice depends on your water data, household size, and which features matter most to you. Check your city's water quality first to understand what you are treating.
Price Difference: $100
The Whirlpool WHES40 costs $100 more. The question is whether the differences justify the cost for your situation.
Full Spec Comparison
| Specification | Whirlpool WHES40 | AquaTru Classic |
|---|---|---|
| Grain Capacity | 40,000 | — |
| Flow Rate (GPM) | 8 | — |
| Bathrooms Supported | 1–4 | — |
| Regeneration Type | Demand-initiated (metered) | — |
| Resin Crosslink | 8% | — |
| Valve Type | Digital demand | — |
| Salt Usage | Sixth Sense technology optimizes salt use | — |
| Warranty | 1 year (parts), limited | — |
| Certifications | NSF/ANSI 44, 372 | NSF 42, 53, 58, 401, P473 |
| Dimensions | 21.3" x 15" x 47.5" | — |
| Installation | DIY-friendly | None (countertop) |
| Water Source | City & Well | — |
| Hardness Removal | Up to 125 GPG | — |
| Iron Removal | Up to 10 PPM | — |
| Stages | — | 4-stage reverse osmosis |
| TDS Removal | — | 99% |
| PFAS Removal | — | NSF P473 certified |
| Lead Removal | — | NSF 53 certified |
| Capacity | — | 3-quart pitcher |
| Flow Rate | — | ~10 min per batch |
| Waste Ratio | — | 4:1 |
| Filter Replacement | — | 0/year |
Frequently Asked Questions
Is the Whirlpool WHES40 or AquaTru Classic better?
It depends on your situation. AquaTru Classic ($450) is the better value for most homes. Whirlpool WHES40 ($550) offers premium features that may justify the cost for larger households or those wanting maximum convenience.
Is the AquaTru Classic worth it at $450?
AquaTru Classic is one of the most popular water treatment systems on the market. At $450, it offers strong performance for the price. Renters who want RO filtration without installation.
What is the difference between a water softener and a water filter?
A water softener removes hardness minerals (calcium, magnesium) that cause scale. A filter removes contaminants (chlorine, PFAS, lead). They solve different problems. Many homes need both. See our detailed guide. Read our full guide →
Related Guides
Affiliate disclosure: CheckMyTap earns a commission if you purchase through our links. This does not affect our analysis. We compare systems based on water data and household needs, not commission rates. Full disclosure →