2 pack for XFF36 SHARK Filter Kits (2 Foam & 4 Felt) for Shark Navigator Upright Vacuum Cleaners. Desighned by Gold Line 2 x XFF36 foam filters and 4 x XFF36 felt filters These filter kits fit Shark vacuum cleaners: UV410 Series, NV36A, NV36, NV44, NV46C, NV46, NV42 Replaces Shark OEM # XFF36 100% satisfaction and risk-free money-back Guarantee. Hassle free return policy Designed & Engineered by Gold Line