3M Aqua-Pure AP802B Whole House Filter Housing vs 3WH-STD-S01 Standard Whole House Pre-Filtration System: which is safer?
3M Aqua-Pure AP802B Whole House Filter Housing is our pick, better on PFAS and on the overall hazard picture.
Our pick
Aqua Pure
3M Aqua-Pure AP802B Whole House Filter Housing
PFAS grade
Excellent 95/100
Overall grade
Excellent 83/100
Verdict
Buy
Hazard flags
⚑ 3
Material
polypropylene filter housing, carbon/sediment cartridge
Confidence
72%
PossibleBacterial growth in spent cartridges
PossiblePolypropylene stress fractures under thermal or pressure stress
PossibleCartridge bypass or seal degradation
Filtrete
3WH-STD-S01 Standard Whole House Pre-Filtration System
PFAS grade
Excellent 85/100
Overall grade
Excellent 81/100
Verdict
Buy
Hazard flags
⚑ 1
Material
Activated carbon and sediment filter media
Confidence
72%
PossibleBacterial colonization of filter media
Where these two actually differ
- We flag Bacterial growth in spent cartridges, Polypropylene stress fractures under thermal or pressure stress and Cartridge bypass or seal degradation on the Aqua Pure and not on the Filtrete.
- We flag Bacterial colonization of filter media on the Filtrete and not on the Aqua Pure.
- The Aqua Pure is polypropylene filter housing, carbon/sediment cartridge where the Filtrete is Activated carbon and sediment filter media, which is most of the difference in these two grades.
Both products run through the same public rubric, which covers materials, coatings, brand disclosure, lab findings, and recalls, plus a beyond-PFAS hazard analysis. Grades are model-based estimates, not lab tests. How grades work →
More whole-house filters, see the full ranking