Waterdrop WD-G3-CB Filter, Replacement for WD-G3-W, WD-G3P600 and WD-G3P800-W Reverse Osmosis System, 1-year Lifetime: For WD G3 W & WD G3P600 & WD G3P800 W : The precision filtration system effectively improves the taste and smell of water. It helps deliver clean and pure water. : This filter boasts a superior coconut shell activated carbon block with a smaller pore size, which largely adsorbs residual chlorine odor and organics, improving the waters taste. The activated carbon block is made from natural coconut shells . Please confirm whether you are allergic to