OEM Part XHF350 Genuine HEPA Filter Fits: Liftaway and Navigator vacuum models mentioned. HEPA filter provides efficient filtration of dust and allergens Geniune HEPA Filter Model XHF350 Compatible with Shark Navigator Liftaway NV350 UV440 UV540 UV550 Upright Vacuum Cleaners. Compatible with: CU500, CU520, NV350_26, NV350A_26, NV350E, NV350Q, NV350T, NV350W, NV350W_N, NV350WC, NV351, NV351C, NV351WM1, NV351WM2, NV352, NV352C, NV352CFS, NV352E, NV352Q, NV354C, NV355, NV355C, NV355CFS, nv356E, NV356K, NV356Q, NV357, NV358, NV358BRN, NV360, NV360K, NV361BK, NV361PR, NV370, NV370_26, NV380, NV380C, NV391, NV391C, UV440, UV440CCO, UV440CCOFS, UV490CCO, UV500WM, UV540, UV540CCO, UV541CCO, UV550, ZU503AMZ