These filters are a perfect match for my professional Shark Rotator. Too bad I didn't even know the HEPA filter in it was replaceable until I looked for a replacement foam rubber filter. I washed the foam so many times it fell apart. When I found the Hepa filter it was time to replace it! This fits without any problems and seems to do its job well. I didn't notice any loss of suction before replacing these filters, so I can't say if this has contributed to better suction.