GE Reverse Osmosis Filtration System GXRQ18NBN vs Puri 7 | Reverse Osmosis System – Under Sink Drinking Water Filter Yes (+$53): which is safer?

GE Reverse Osmosis Filtration System GXRQ18NBN is our pick: better on PFAS and on the overall hazard picture.

Our pick

GE Water

GE Reverse Osmosis Filtration System GXRQ18NBN

PFAS grade

A 100/100

Overall grade

B 88/100

Verdict

Buy

Hazard flags

⚑ 3

Material

activated carbon, polyamide RO membrane, stainless steel housing

Confidence

72%

PossibleBacterial contamination in storage tank

PossiblePolyamide membrane degradation

PossiblePressure tank integrity loss

Why this gradeBuy

PureLiving

Puri 7 | Reverse Osmosis System – Under Sink Drinking Water Filter Yes (+$53)

PFAS grade

A 100/100

Overall grade

C 78/100

Verdict

Buy with care

Hazard flags

⚑ 4

Material

RO membrane, carbon filter, stainless steel/plastic housing

Confidence

72%

PossibleBacterial growth in storage tank

PossibleCarbon filter saturation and bypass

PossibleMembrane seal degradation

Why this gradeBuy

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 →

More under-sink ro systems: see the full ranking