3M Aqua-Pure AP802B Whole House Filter Housing vs HD-950A Heavy Duty Whole House Water Filter: which is safer?

Where these two actually differ

• We flag Bacterial growth in spent cartridges, Polypropylene stress fractures under thermal or pressure stress and Cartridge bypass or seal degradation on the Aqua Pure and not on the Culligan.
• We flag Bacterial growth in stagnant housing, Activated carbon dust ingestion, Filter bypass if not sealed properly and Degradation of filter cartridge over time on the Culligan and not on the Aqua Pure.
• The Aqua Pure is polypropylene filter housing, carbon/sediment cartridge where the Culligan is activated carbon filter media, polypropylene housing, which is most of the difference in these two grades.
• These two are level, close enough that price and fit should decide it rather than our grade.