Whirlpool
Whirlpool WHES40E 40,000 Grain Water Softener
$629.99
Best Water Softeners · head-to-head
Whirlpool WHES40E 40,000 Grain Water Softener vs EcoPure EP42 42,000 Grain Water Softener
A sourced, side-by-side comparison. Whirlpool WHES40E 40,000 Grain Water Softener is cheaper at $629.99. Every spec and price links to its source.
Full spec sheet
✓ marks the stronger figure where "more" — or "less", for price and weight — is unambiguously better.
| Spec |  Whirlpool WHES40E 40,000 Grain Water Softener |  EcoPure EP42 42,000 Grain Water Softener |
|---|---|---|
| US price | $629.99 | — |
| Brand | Whirlpool | EcoPure |
| Released | — | — |
| Grain capacity | 40 | 42 |
| System type | ion-exchange | ion-exchange |
| Flow rate (gpm) | — | — |
| Salt efficiency lbs per kgrains | — | — |
| Iron removal (ppm) | 10 | 11 |
| NSF certifications | NSF/ANSI 44 | NSF Certified |
| Smart app control | No | No |
| Tank warranty years | — | 10 |
| Msrp (USD) | 629.99 | — |
Sources — Whirlpool WHES40E 40,000 Grain Water Softener: fleetfarm.com (verified 2026-06-26). EcoPure EP42 42,000 Grain Water Softener: ecopure.com (verified 2026-06-26).
What's the difference between the Whirlpool WHES40E 40,000 Grain Water Softener and EcoPure EP42 42,000 Grain Water Softener?
Where the two actually differ on the specs we track (3 of 9). Matching specs are omitted.
- Grain capacity: Whirlpool WHES40E 40,000 Grain Water Softener 40 vs EcoPure EP42 42,000 Grain Water Softener 42
- Iron removal (ppm): Whirlpool WHES40E 40,000 Grain Water Softener 10 vs EcoPure EP42 42,000 Grain Water Softener 11
- NSF certifications: Whirlpool WHES40E 40,000 Grain Water Softener NSF/ANSI 44 vs EcoPure EP42 42,000 Grain Water Softener NSF Certified