SYSTEMS QUS220 Series Small Ultra Stack and Hang Storage Bin vs K470 Aluminum Storage Case 40845: which is safer?
zarges K470 Aluminum Storage Case 40845 is our pick: better on PFAS and on the overall hazard picture.
Quantum Storage
SYSTEMS QUS220 Series Small Ultra Stack and Hang Storage Bin
PFAS grade
B 85/100
Overall grade
C 73/100
Verdict
Buy
Hazard flags
⚑ 3
Material
Polypropylene plastic storage bin
Confidence
72%
PossiblePolypropylene thermal degradation
PossibleAdditive migration (non-PFAS)
PossibleMicroplastics from wear
Our pick
Zarges
K470 Aluminum Storage Case 40845
PFAS grade
B 85/100
Overall grade
C 77/100
Verdict
Buy
Hazard flags
⚑ 2
Material
Aluminum with rubber gasket/hinges
Confidence
78%
PossibleAluminum corrosion and leaching
PossibleBacterial or mold growth in seal
Both products run through the same public rubric: 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 →
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