3M Aqua-Pure AP802B Whole House Filter Housing vs 3M Aqua-Pure Whole House Water Filtration System AP902: 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 Aqua Pure.
• We flag Bacterial growth if maintenance is neglected, Activated carbon dust or particles in water, Ineffective filtration due to saturation and Sourcing transparency and upstream contamination risk on the Aqua Pure and not on the Aqua Pure.
• The Aqua Pure is polypropylene filter housing, carbon/sediment cartridge where the Aqua Pure is activated carbon, 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.