Does Pentair remove nitrate?
Yes
1 Pentair model we track is independently certified to remove nitrate — a reverse-osmosis filter.
Based on the itemized NSF, WQA & IAPMO certified-model listings we track for Pentair (43 of 45 models).
Which Pentair models are certified
Certification is per model — make sure the product you buy is one of these specific certified models, not just the same brand.
| Certified model | Type | |
|---|---|---|
| Pentair GRO-350B | reverse-osmosis | Buy on Amazon → |
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About nitrate
Causes 'blue baby syndrome' (methemoglobinemia) in infants under 6 months; MCL 10 mg/L as N. Runoff from fertilizer, septic, manure.
What Pentair filters are certified to remove
Across the Pentair models we track, here’s what their certifications actually cover.
See every filter certified for nitrate — all brands, ranked.
Certified for nitrate → Other brands & nitrate
How we know: we normalize the public certified-product listings from NSF, WQA, and IAPMO. A “yes” means a specific Pentair model is listed as certified for nitrate. See our methodology.