PureDrop PDR F7RO Replacement Water Filter Review

2 x 1st stage: 5-micron multi-layer gradient polypropylene snow-white filter blocks sediment, sand, dust, rust and anything that causes turbidity. 2 x 2nd stage: 5-micron granular activated carbon absorbs unpleasant chlorine, tastes and odors, cloudiness and colors. 2 x 3rd stage: 5 micron CTO carbon block absorbs any residual chlorine, tastes and odors, plus compounding pre-filters' efficiency and extending RO membrane's life. 1 x 5th stage: total polishing inline carbon absorbs any possible residual tastes and odors. Individually wrapped for freshness.