Home Revolution Brand products provide High Quality filters made to fit for compatibility with the following Hoover Vacuum Cleaners: Hoover WindTunnel Air Model UH70400 & UH72400 Primary Washable and Reusable Filter. Made to replace Hoover WindTunnel UH70400 & UH72400 Primary Filter. Comparable to Part # 303903001. This is not an OEM product and is not covered under any OEM warranty. The brand names and logos referenced here are the registered trademarks of their respective owners. Any use of these brand names, models or part number designations for this product is made solely for purposes of demonstrating compatibility. This is a replacement product carefully crafted by Home Revolution. Home Revolution filters detoxify the air and exhilarate the home and mind. With a powerful style of manufacturing, we link clean air and earth-friendly intention together. 100% fresh air and satisfaction or your money back!