FIT MODELS – These vacuum replacement filters for Shark Rocket HV320, HV320W, HV321, HV322, HV324Q, HV343AMZ, HV345, HV371, UV330, UV345CCO, UV422, UV425CCO, UV480, ZS350, ZS351, ZS352. Compare to Part # XPMFK320&1084FTV320..PLEASE NOTE – The two versions of HV320 series vacuum use different filters. If your pre-motor foam & felt filters without a hole , these are the correct filters. If your pre-motor foam & felt filters with a hole, these are the incorrect filters..HIGHLY PERFORMANCE – This complete vacuum filter system is made up of a combination of parts. Includes 4 premium foam filers with 60 PPI density and 4 ultra-thick felt filters with a textured surface and 4 post-filters, uses the latest technology to absorb small particles such as food, hair, dirt and pet dander..EASY TO REPLACE – Clean by hand washing in warm water and let it completely air dry before reusing them. Regularly clean filters improve suction and performance, recommend to replace the foam filter felt filter and post-filter every 2-3 months..MEET YOUR NEEDS – If there are any questions please contact us, we are committed to offer the premium products and efficient customer service.