Whirlpool
Whirlpool WHES40E 40,000 Grain Water Softener
$629.99
Best Water Softeners · head-to-head
Whirlpool WHES40E 40,000 Grain Water Softener vs A.O. Smith 40,000 Grain Water Softener (AO-WH-SOFT-400T)
A sourced, side-by-side comparison. A.O. Smith 40,000 Grain Water Softener (AO-WH-SOFT-400T) is cheaper at $549. Every spec and price links to its source.
A.O. Smith
A.O. Smith 40,000 Grain Water Softener (AO-WH-SOFT-400T)
$549Cheaper
Which is better: the Whirlpool WHES40E 40,000 Grain Water Softener or A.O. Smith 40,000 Grain Water Softener (AO-WH-SOFT-400T)?
On the specs we track, they're closely matched. The A.O. Smith 40,000 Grain Water Softener (AO-WH-SOFT-400T) is the cheaper at $549.
See Whirlpool WHES40E 40,000 Grain Water Softener on Amazon See A.O. Smith 40,000 Grain Water Softener (AO-WH-SOFT-400T) on Amazon
As an Amazon Associate we earn from qualifying purchases. Prices verified at capture; live price may differ.
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 | A.O. Smith 40,000 Grain Water Softener (AO-WH-SOFT-400T) |
|---|---|---|
| US price | $629.99 | $549 |
| Brand | Whirlpool | A.O. Smith |
| Released | — | — |
| Grain capacity | 40 | 40 |
| System type | ion-exchange | ion-exchange |
| Flow rate gpm | — | — |
| Salt efficiency lbs per kgrains | — | — |
| Iron removal ppm | 10 | 10 |
| Nsf certifications | NSF/ANSI 44 | — |
| Smart app control | No | No |
| Tank warranty years | — | 10 |
| Msrp usd | 629.99 | 549 |
Sources — Whirlpool WHES40E 40,000 Grain Water Softener: fleetfarm.com (verified 2026-06-26). A.O. Smith 40,000 Grain Water Softener (AO-WH-SOFT-400T): aosmithatlowes.com (verified 2026-06-26).
What's the difference between the Whirlpool WHES40E 40,000 Grain Water Softener and A.O. Smith 40,000 Grain Water Softener (AO-WH-SOFT-400T)?
Where the two actually differ on the specs we track (1 of 9). Matching specs are omitted.
- Msrp usd: Whirlpool WHES40E 40,000 Grain Water Softener 629.99 vs A.O. Smith 40,000 Grain Water Softener (AO-WH-SOFT-400T) 549