Primo Htrio Bottom Load Water Dispenser vs Culligan 12-Cup Water Filter Pitcher with ZeroWater Technology: which is safer?

Where these two actually differ

• We flag Bacterial growth in filter housing and tubing, Leachates from rubber gaskets and tubing, Filter media degradation and particle release and Mold and mildew in drip tray and loading port on the Primo Water and not on the ZeroWater.
• 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 Primo Water.
• The Primo Water is Stainless steel tank, carbon/sediment filters where the ZeroWater is Activated carbon and ion-exchange resin 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.