Rheem
Rheem Preferred Platinum 42,000 Grain Smart Water Softener (RHW42)
$689
Best Water Softeners · head-to-head
A sourced, side-by-side comparison. Morton M34 Elite 34,000 Grain Water Softener is cheaper at $462.79. Every spec and price links to its source.
Rheem
$689
Morton
$462.79Cheaper
On the specs we track, they're closely matched. The Morton M34 Elite 34,000 Grain Water Softener is the cheaper at $462.79.
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✓ marks the stronger figure where "more" — or "less", for price and weight — is unambiguously better.
| Spec | | |
|---|---|---|
| US price | $689 | $462.79 |
| Brand | Rheem | Morton |
| Released | — | — |
| Grain capacity | 42.4 | 34 |
| System type | ion-exchange | ion-exchange |
| Flow rate gpm | 9.9 | — |
| Salt efficiency lbs per kgrains | — | — |
| Iron removal ppm | 11 | 9 |
| Nsf certifications | — | NSF Certified |
| Smart app control | Yes | No |
| Tank warranty years | 10 | 10 |
| Msrp usd | 689 | 462.79 |
Sources — Rheem Preferred Platinum 42,000 Grain Smart Water Softener (RHW42): rheemwatertreatment.com (verified 2026-06-26). Morton M34 Elite 34,000 Grain Water Softener: menards.com (verified 2026-06-26).
Where the two actually differ on the specs we track (4 of 9). Matching specs are omitted.