Watts Water Technologies Review, Is Watts Water Technologies Non-Toxic?
Watts Water Technologies averages 95 out of 100 on PFAS Authority's PFAS and toxin screen across the single Watts Water Technologies product graded as of October 2026, which reaches its 70 point pass mark.
Watts Water Technologies grades Excellent on our four-band scale. On disclosure, the brand says nothing publicly about PFAS. See what every brand has published about PFAS for how that compares.
PFAS Authority is a scoring system, not a laboratory. We do not test products ourselves. Grades are model-based, built from published ingredients, materials, certifications, brand disclosures and third-party lab results where they exist. See the rubric.
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- polypropylene filter housing, carbon/sediment cartridge
- We found no PFAS statement from the brand
- Bacterial growth in spent cartridges
3 hazards checked on this product, all on its full breakdown.
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- RO membrane, carbon filters, stainless steel housing
- We found no PFAS statement from the brand
- Bacterial and microbial growth in housing and filters
4 hazards checked on this product, all on its full breakdown.
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- organic cotton, natural latex, coconut coir, recycled steel coils
- The brand calls it PFAS-free, which we have not verified
- Heavy metals
2 hazards checked on this product, all on its full breakdown.
Which Watts Water Technologies products are PFAS-free? Good or better, best-graded first
- Carbon and sediment filter cartridges; housing components
- We found no PFAS statement from the brand
- Bacterial growth in unmaintained cartridges. Saturated carbon media can harbor biofilm if cartridge…
2 hazards checked on this product, all on its full breakdown.
Watts Water Technologies and PFAS, common questions
- Does Watts Water Technologies have PFAS?
- Watts Water Technologies averages 95 out of 100 on PFAS Authority's PFAS and toxin screen across the single Watts Water Technologies product graded as of October 2026, which reaches its 70 point pass mark. Grades are model-based estimates built from published materials, ingredients and disclosures, not lab tests.
- Is Watts Water Technologies non-toxic?
- Watts BB-S101 Whole Home System is the highest-graded Watts Water Technologies product we have scored, at 95/100. It depends on the product line rather than the brand, so check the grade of the exact item you are buying.
- Which Watts Water Technologies products are lower concern for PFAS?
- The highest-graded Watts Water Technologies products we have scored are Watts BB-S101 Whole Home System. That is our model-based estimate from materials and public disclosure, not a lab test.
Every grade uses the same public rubric. How grades work →