3rd stage: premium extruded carbon block 10 inch - further removes chlorine, tastes, odors, and other common chemicals from the liquid to provide excellent filtered liquid.. It also removes VOCs and other common chemicals from the aqua. 2nd stage: premium extruded carbon block 10 inch -eliminates unpleasant chlorine, tastes, odors, cloudiness, and colors. A 100% pure polypropylene depth filter with exceptional dirt-holding capacity translates to longer life and fewer change-outs than existing string-wound or resin-bonded filters. 1st stage: high-grade 10-inch high-capacity polypropylene sediment filter -removes dust, particles, and rust
