Waterdrop G3 Replacement Filter 1-Year Combo, Pack of 2 WD-G3-CF Filters and 1 WD-G3-CB Filter, Replacement for WD-G3-W, WD-G3P600 and WD-G3P800-W Reverse Osmosis System: WD G3 W, WD G3P600, WD G3P800 W : The 3 in 1 front filtration stages effectively reduce sand, rust, particulates, suspended substances, and other impurities. Delivers clean and pure water to you. The precision filtration system effectively improves the taste and smell of water. It helps deliver clean and pure water. : Applies the superior natural coconut shell activated carbon block with a smaller pore size, which largely absorbs residual chlorine