WHR300 Whole House Water Filter (Replaces NSA 300H). Replacement Tank for NSA 300H & NSA 300HR. Same Height & Diameter as NSA Tank. Granular Activated Carbon Filter. 75,000 Gallon Capacity. Bought new from H20 Distributors on 12/27/2021, decided not to use it, too late to return now. Still in box, unused. This item is in the category “Home & Garden\Kitchen, Dining & Bar\Small Kitchen Appliances\Water Purification\Water Filters”. The seller is “heschong” and is located in this country: US. This item can be shipped to United States.