NSF 42 filters for iron
NSF, WQA, or IAPMO listing to NSF/ANSI 42 for Iron. Certified is a listing, not a ranking.
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| Product | Certifier | Checked | From |
|---|---|---|---|
| Culligan WH-HD200-C Heavy Duty 1 in Whole House Sediment Filter Housing | WQA | 2026-09-14 |