A.O. Smith Water Softeners
The short version
A.O. Smith's AO-WH-SOFT softeners are sold through Lowe's, sitting a step above the cabinet-unit tier on capacity and warranty.
Every A.O. Smith unit in our database
| Model | Type | Capacity | Salt/regen | Flow | Certifications | Warranty | Price | |
|---|---|---|---|---|---|---|---|---|
| A.O. Smith AO-WH-SOFT-450T | salt-based | 45,000 gr | 18.75 lbs | 7.5 GPM | Efficiency rated per NSF/ANSI 44 | 5 yrs parts/electronics, 10 yrs media tank, valve and brine cabinet | — | Check price |
| A.O. Smith AO-WH-SOFT-350 | salt-based | 35,000 gr | 15 lbs | 7.5 GPM | Efficiency rated per NSF/ANSI 44 | 3 yrs parts/electronics, 10 yrs media tank and brine cabinet | — | Check price |
Specs read from manufacturer pages. Each unit's page lists its source and check date. “—” means not yet sourced, never guessed.
How to choose
Brand matters less than size and type. Start with the capacity your household needs, then decide salt-based vs salt-free, and only then compare A.O. Smith against the alternatives at that size in the full database.