Culligan 12-Cup Water Filter Pitcher with ZeroWater Technology vs 7 Cup Ready-Pour Water Filteration Pitcher: which is safer?

Where these two actually differ

• We flag Bacterial growth in reservoir if filter unmaintained or water stored too long, Filter cartridge degradation and particle escape if overfilled or misseated and Ion-exchange resin saturation without visible warning on the ZeroWater and not on the ZeroWater.
• We flag Bacterial growth in filter media if unmaintained, Plastic housing degradation under heat or UV and Filter media composition opacity on the ZeroWater and not on the ZeroWater.
• The ZeroWater is Activated carbon and ion-exchange resin filter media where the ZeroWater is plastic pitcher, activated carbon and ion exchange filter media, which is most of the difference in these two grades.
• These two are 5 points apart, close enough that price and fit should decide it rather than our grade.