Whole House Reverse Osmosis Water Filtration System. The item "Whole House Reverse Osmosis Water Filtration System" is in sale since Saturday, July 18, 2020. This item is in the category "Home & Garden\Kitchen, Dining & Bar\Small Kitchen Appliances\Water Purification\Water Filters". The seller is "darollin6" and is located in Raleigh, North Carolina. This item can be shipped to United States.