Water Storage Treatment 2 oz Glass Bottles 60 gallons Purification vs QVC Kirkland Signature Water Pitcher: which is safer?

Where these two actually differ

• We flag Chemical overdose or misuse, Degradation and loss of efficacy over time, Glass bottle breakage and spillage and Chlorine residue and taste/odor on the Aquamira and not on the Kirkland.
• We flag Bacterial growth in filter media and reservoir, Filter media saturation and bypass and Mold and mildew growth in damp surfaces on the Kirkland and not on the Aquamira.
• The Aquamira is glass bottles, sodium dichloroisocyanurate treatment chemical where the Kirkland is Plastic pitcher body, likely polypropylene or BPA-free plastic; carbon or 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.