AQUASURE Premier Series 75 GPD Under Sink Reverse Osmosis Water Filtration System vs AquaTru Under Sink Under Sink: which is safer?

AquaTru Under Sink Under Sink is our pick: better on PFAS and on the overall hazard picture.

Aqua Guard

AQUASURE Premier Series 75 GPD Under Sink Reverse Osmosis Water Filtration System

PFAS grade

A 100/100

Overall grade

C 78/100

Verdict

Buy

Hazard flags

⚑ 4

Material

RO membrane, carbon filters, stainless steel housing

Confidence

72%

PossibleBacterial and microbial growth in housing and filters

PossibleActivated carbon filter degradation and dust release

ReportedRO membrane integrity failure and microbial breakthrough

Why this gradeBuy

Our pick

Aqua Guard

AquaTru Under Sink Under Sink

PFAS grade

A 100/100

Overall grade

B 84/100

Verdict

Buy with care

Hazard flags

⚑ 4

Material

Multi-stage filter cartridges (activated carbon, ion exchange resins)

Confidence

72%

PossibleBacterial growth in filter cartridges and housing

PossibleIon-exchange resin leaching (minerals and residual binding agents)

PossibleHousing plastic or elastomer degradation under moisture stress

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