Waterdrop D6 reverse osmosis water filtration system. Box was opened to verify contents.The item "Waterdrop D6 reverse osmosis water filtration system" is in sale since Sunday, October 3, 2021. This item is in the category "Home & Garden\Kitchen, Dining & Bar\Small Kitchen Appliances\Water Purification\Water Filters". The seller is "dooman_0" and is located in Upland, California. This item can be shipped to United States.