# Whirlpool WHES40E 40,000 Grain Water Softener vs A.O. Smith 40,000 Grain Water Softener (AO-WH-SOFT-400T): specs and price compared

A sourced, side-by-side comparison of the Whirlpool WHES40E 40,000 Grain Water Softener (Whirlpool) and A.O. Smith 40,000 Grain Water Softener (AO-WH-SOFT-400T) (A.O. Smith) among water softeners. A.O. Smith 40,000 Grain Water Softener (AO-WH-SOFT-400T) is the cheaper of the two at $549.

## Side by side

| 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 |
| 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 |

## Key differences

- 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

## Sources

- Whirlpool WHES40E 40,000 Grain Water Softener: https://www.fleetfarm.com/detail/whirlpool-40-000-grain-capacity-electric-water-softener/0000000091831 (fleetfarm.com, verified 2026-06-26)
- A.O. Smith 40,000 Grain Water Softener (AO-WH-SOFT-400T): https://www.aosmithatlowes.com/products/water-softeners/ao-wh-soft-400t/ (aosmithatlowes.com, verified 2026-06-26)

Canonical: https://frontdeskreview.com/gear/water-softeners/whirlpool-whes40e-vs-ao-smith-ao-wh-soft-400t/
Cite: Per The Front Desk Review, Whirlpool WHES40E 40,000 Grain Water Softener ($629.99) vs A.O. Smith 40,000 Grain Water Softener (AO-WH-SOFT-400T) ($549) — sourced spec-by-spec comparison at https://frontdeskreview.com/gear/water-softeners/whirlpool-whes40e-vs-ao-smith-ao-wh-soft-400t/
License: CC BY 4.0.