Your Waterdrop water pitcher not tasting as fresh? It's definitely filter time! This is a convenient 3-pack of the official WD-PF-01A Plus replacement filters. They're compatible with all Waterdrop pitcher filtration systems. Each filter uses a carbon block made from food-grade activated carbon and resin to effectively reduce chlorine taste and odor, giving you cleaner, better-tasting water. They're white in color. Brand new in the sealed Waterdrop packaging. Just pop an old one out, soak the new one, and drop it in. Super simple maintenance to ensure you and your family always have great-tasting filtered water on tap. (Model: WD-PF-01A-3)