Residential/Commercial Hot/Cold Bottom Loading Water Dispenser 601090 vs Culligan 12-Cup Water Filter Pitcher with ZeroWater Technology: which is safer?

Where these two actually differ

• We flag Bacterial growth in standby water, Filter housing contamination or bypass and Sediment filter media degradation 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, plastic, 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.