Salt-free conditioner · checked 16 Oct 2026
A. O. Smith Whole House Multifunction Descaler
Model AO-WH-DSCLR
Lead:not claimedPFAS:not claimed
Each claim, checked
What the brand says, what a certification listing shows for this model, and where each fact comes from. We read listings; we do not test products.
- Certified (listing checked)The certifier’s public listing shows this claim for this model.
- Brand says certifiedThe brand says certified; IAPMO’s listing does not show it. NSF can be checked by hand.
- Brand claim onlyThe brand claims it without citing a certification.
| Contaminant | Brand claim | Standard | Certifier | Confirmed? | Source, date checked |
|---|---|---|---|---|---|
| Scale | “Obsessively engineered to naturally reduce scale build-up on internal pipes and plumbing – salt and chemical free.” brand source | – | – | Brand claim — no certification cited | brand pagechecked 16 Oct 2026 |
| Particulates | “Reduces Sediment: Yes” brand source | – | – | Brand claim — no certification cited | brand pagechecked 16 Oct 2026 |
| Turbidity | “Reduces Turbidity: Yes” brand source | – | – | Brand claim — no certification cited | brand pagechecked 16 Oct 2026 |
Filter changes, by the brand’s numbers
How often A. O. Smith says to replace each part. Real filter life depends on how much water you use and what is in it.
| Part | Brand says replace every | Changes a year | Source, date checked |
|---|---|---|---|
| Descaler tank with scale control media (AO-WH-DSCLR) | 6 years or 600,000 gallons“The recommended replacement frequency for the AO-WH-DSCLR is every 6 years or 600,000 gallons of use.” | 1 every 6 years | brand sourcechecked 16 Oct 2026 |
Certification listings found
No IAPMO R&T listing matched this model when we searched on 16 Oct 2026.
Check it yourself
NSF’s and WQA’s terms don’t allow automated lookups, so these links open their public listings for this model: