SpringWell SS1 vs Whirlpool WHES40
Two popular Salt-Based Water Softeners compared side by side. Best for hard water above 120 PPM.
SpringWell SS1 and Whirlpool WHES40 are both Salt-Based Water Softeners. SpringWell SS1 is best for: Most homes with hard water - best overall value for salt-based softening. Whirlpool WHES40 is best for: Budget shoppers who want a certified softener available at a retail store.
The key spec differences: Grain Capacity: SpringWell offers 32,000 while Whirlpool provides 40,000. Flow Rate (GPM): SpringWell offers 11 while Whirlpool provides 8. Bathrooms Supported: SpringWell offers 1-3 while Whirlpool provides 1-4. Regeneration Type: SpringWell offers Metered (on-demand) while Whirlpool provides Demand-initiated (metered).
The Whirlpool WHES40 is the more affordable option at $550 vs $1495, a difference of $945. Check your city's water data first to confirm which type of system your water needs.
Full Spec Comparison
| Specification | SpringWell SS1 | Whirlpool WHES40 |
|---|---|---|
| Grain Capacity | 32,000 | 40,000 |
| Flow Rate (GPM) | 11 | 8 |
| Bathrooms Supported | 1-3 | 1-4 |
| Regeneration Type | Metered (on-demand) | Demand-initiated (metered) |
| Resin Crosslink | 10% | 8% |
| Valve Type | Bluetooth Connected Series | Digital demand |
| Salt Usage | ~40 lb bag every 1-2 months | Sixth Sense technology optimizes salt use |
| Warranty | Lifetime | 1 year (parts), limited |
| Certifications | NSF-certified components | NSF/ANSI 44, 372 |
| Dimensions | 10" x 54" tank + brine tank | 21.3" x 15" x 47.5" |
| Installation | DIY-friendly | DIY-friendly |
| Water Source | City & Well | City & Well |
| Hardness Removal | Up to 20+ GPG | Up to 125 GPG |
| Iron Removal | Up to 3 PPM | Up to 10 PPM |
Pros and Cons
Best For
Most homes with hard water - best overall value for salt-based softening
Budget shoppers who want a certified softener available at a retail store
Our Assessment
SpringWell SS1: The SpringWell SS1 is the top-rated salt-based water softener for homes with 1-3 bathrooms. Lab tests confirm 97.5% hardness removal and the lifetime warranty is industry-leading.
Whirlpool WHES40: The Whirlpool WHES40 is the easiest softener to buy - walk into Lowe's and take it home. NSF-certified and handles very hard water, but the 1-year warranty is a weakness.
Frequently Asked Questions
Is the SpringWell SS1 or Whirlpool WHES40 better?
Is the SpringWell SS1 a good choice?
What is the difference between a water softener and a water filter?
The Short Version
SpringWell SS1 is best for most homes with hard water - best overall value for salt-based softening. Whirlpool WHES40 is best for budget shoppers who want a certified softener available at a retail store. Check your water data to confirm what you are treating.
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