Review on 🔍 Crucial Vacuum Replacement Filter Set for Hoover WindTunnel Air Model UH70400 – HEPA Style & Pre-Filter – (2 Filters Included) by Amy Johnson

HEPA filter is the exhaust filter in question. It fits snugly on my 72400 if you remove the rubber grommet. Factory also unsealed if you look. It works well and I don't notice the air moving around the filter (see particles around the edges). The intake filter fits and looks almost exactly like the factory filter. They are good for the price and Crucial has good customer service whenever I need anything. ETA: Having used these filters for a while I would be wary that the main filter doesn't seem to flow as well as the factory filter. This reduces the performance of the vacuum cleaner and can stress the motor over time or with prolonged use.