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

Where these two actually differ

• We flag Bacterial and microbial growth in housing and filters, Activated carbon filter degradation and dust release, RO membrane integrity failure and microbial breakthrough and Tubing and connector leakage or degradation on the Aqua Guard and not on the Aqua Guard.
• We flag Activated carbon cartridge shedding and bacterial growth, Housing plastic leaching (unconfirmed polymer identity) and Bacterial contamination in storage tank on the Aqua Guard and not on the Aqua Guard.
• The Aqua Guard is RO membrane, carbon filters, stainless steel housing where the Aqua Guard is reverse osmosis membrane, carbon filter cartridges, housing (likely plastic/resin), 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.