These filters fit the Shark Upright Lift-Away. They fit just as well if not better than the original factory filters. You will not be able to tell the difference between the original HEPA filter and the replacement HEPA filter. The replacement fabric pre-filter is slightly thicker and made of a much better material than the original. The replacement foam filter is slightly thinner than the original filter but appears denser than the original filter. The suction and cleaning vacuum performance is the same as the original. We give the manufacturer and the seller a twosome! Buy these filters from this seller and you will not be disappointed.