A.O. Smith · Updated June 2026
A.O. Smith 40,000 Grain Water Softener (AO-WH-SOFT-400T): price & specs
The A.O. Smith 40,000 Grain Water Softener (AO-WH-SOFT-400T) costs $549, #5 cheapest of 18 water softeners (median $630). It earns a Gold Deskmark — 89/100 pay-blind standing, #4 of 19 in class.
Verified Jun 27, 2026 · figures linked to their source in the table below
A.O. Smith 40,000 Grain Water Softener (AO-WH-SOFT-400T). Every price and spec below is linked to its source and dated — no guesses.
Source: aosmithatlowes.com verified ✓ corroborated verify in ledger
Is the A.O. Smith 40,000 Grain Water Softener (AO-WH-SOFT-400T) a good buy?
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.
Specifications
| 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. |
|---|---|
| Brand | A.O. Smith |
| Released | — |
| 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 |
Source: aosmithatlowes.com (verified 2026-06-26) · corroborated by waterdefense.org. A.O. Smith at Lowe's product page confirms 40,000 grain capacity, 10 ppm max iron reduction, 2.7-inch monochrome touch screen, salt-sensing technology, 100 GPG max hardness, 20-120 PSI operating pressure. Warranty: 3yr mechanical/electronic parts / 10yr media tank and brine cabinet. Designed for 3-4 people. Price $549 confirmed by waterdefense.org review. No WiFi on this model.
Is the A.O. Smith 40,000 Grain Water Softener (AO-WH-SOFT-400T) worth it vs cheaper water softeners?
A.O. Smith 40,000 Grain Water Softener (AO-WH-SOFT-400T) against its closest cheaper and pricier water softeners on the specs that matter — every value sourced. See all 18 ranked →
| Product | Price | Grain capacity | System type | Iron removal ppm | Smart app control | Tank warranty years |
|---|---|---|---|---|---|---|
| A.O. Smith 40,000 Grain Water Softener (AO-WH-SOFT-400T) this | $549 | 40 | ion-exchange | 10 | No | 10 |
| WaterBoss 700 22,000 Grain Water Softener | $529.99 | 22 | ion-exchange | 10 | No | 10 |
| GE 40,000 Grain Water Softener (GXSH40V) | $569 | 40 | ion-exchange | — | Yes | — |
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.
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WaterBoss 700 22,000 Grain Water Softener -
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All water softeners ranked → · Open data & methodology · Queryable via MCP
Compare with
Head-to-head
- A.O. Smith 40,000 Grain Water Softener (AO-WH-SOFT-400T) vs Whirlpool WHES40E 40,000 Grain Water Softener
- A.O. Smith 40,000 Grain Water Softener (AO-WH-SOFT-400T) vs Rheem Preferred Platinum 42,000 Grain Smart Water Softener (RHW42)
- A.O. Smith 40,000 Grain Water Softener (AO-WH-SOFT-400T) vs GE 40,000 Grain Water Softener (GXSH40V)
- A.O. Smith 40,000 Grain Water Softener (AO-WH-SOFT-400T) vs WaterBoss 700 22,000 Grain Water Softener
- A.O. Smith 40,000 Grain Water Softener (AO-WH-SOFT-400T) vs Morton M34 Elite 34,000 Grain Water Softener
- A.O. Smith 40,000 Grain Water Softener (AO-WH-SOFT-400T) vs EcoPure EP42 42,000 Grain Water Softener
- A.O. Smith 40,000 Grain Water Softener (AO-WH-SOFT-400T) vs NuvoH2O Manor Salt-Free Water Softener System (DPMB)
Cheaper water softeners
Step up
- GE 40,000 Grain Water Softener (GXSH40V) $569
- WaterBoss 900 36,400 Grain Water Softener $580
- Morton M45C 45,000 Grain Wi-Fi Water Softener $622.99
- Whirlpool WHES40E 40,000 Grain Water Softener $629.99
- Aquasure Harmony Series 48,000 Grain Digital Metered Water Softener (AS-HS48D) $629.99
- A.O. Smith 45,000 Grain Smart Water Softener (AO-WH-SOFT-450T) $649