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

**Price (US):** $549 ($549 per waterdefense.org and aosmithatlowes.com. One search result mentioned $447 at Lowe's (possible sale/clearance). Lowe's Item #960797.), as of 2026-06-26. Among the 18 water softeners we track it is #5 cheapest of 18; category median $630.
**Brand:** A.O. Smith
**Deskmark:** Gold Deskmark — pay-blind category standing 89/100, #4 of 19 in class (independent, computed from sourced data, never for sale).
**Price tracked since:** June 2026

## Specifications

| Spec | Value |
| --- | --- |
| Price (US) | $549 |
| Brand | A.O. Smith |
| Grain capacity | 40 |
| System type | ion-exchange |
| Flow rate gpm | — |
| Salt efficiency lbs per kgrains | — |
| Iron removal ppm | 10 |
| Nsf certifications | — |
| Smart app control | No |
| Tank warranty years | 10 |
| Msrp usd | 549 |

## Where it stands

At $549, the A.O. Smith 40,000 Grain Water Softener (AO-WH-SOFT-400T) is #5 cheapest of the 18 water softeners we track, where the median is $630. On the spec sheet, its tank warranty years of 10 is the highest of the 12, its msrp usd of 549 is below the median of the 17, and its grain capacity of 40 is at the median of the 18.

## Frequently asked questions

**How much does the A.O. Smith 40,000 Grain Water Softener (AO-WH-SOFT-400T) cost?**

The A.O. Smith 40,000 Grain Water Softener (AO-WH-SOFT-400T) has a US price of $549 ($549 per waterdefense.org and aosmithatlowes.com. One search result mentioned $447 at Lowe's (possible sale/clearance). Lowe's Item #960797.), as of 2026-06-26.

**How does the A.O. Smith 40,000 Grain Water Softener (AO-WH-SOFT-400T) compare on price?**

At $549, the A.O. Smith 40,000 Grain Water Softener (AO-WH-SOFT-400T) is #5 cheapest of the 18 water softeners we track, where the median is $630.

**What are the A.O. Smith 40,000 Grain Water Softener (AO-WH-SOFT-400T)'s key specs?**

A.O. Smith 40,000 Grain Water Softener (AO-WH-SOFT-400T) (A.O. Smith): grainCapacity 40, systemType ion-exchange, ironRemovalPpm 10, smartAppControl No, tankWarrantyYears 10. Full sourced spec sheet verified 2026-06-26.

Source: https://www.aosmithatlowes.com/products/water-softeners/ao-wh-soft-400t/ (aosmithatlowes.com, accessed 2026-06-26)
Corroboration: https://waterdefense.org/water-softener/brand/ao-smith/ (accessed 2026-06-26)
Canonical: https://frontdeskreview.com/product/water-softeners/ao-smith-ao-wh-soft-400t/
Cite: Per The Front Desk Review, the A.O. Smith 40,000 Grain Water Softener (AO-WH-SOFT-400T) price of record was $549 as of 2026-06-26 — https://frontdeskreview.com/product/water-softeners/ao-smith-ao-wh-soft-400t/
License: CC BY 4.0. Price history: https://frontdeskreview.com/data/price-history.jsonl