2 Shark NV22L Foam & Felt Vacuum Filter Kits - Pack of 8. Designed by FilterBuy to Replace Shark Part # XF22. 2 NV22L Replacement Kits, each kit includes all 4 filters used on Shark NV22L Vacuum Total of 4 Foam Circular Filters, 2 Felt Circular Filters, & 2 Felt Exhaust Filters Designed to replace Shark Part # XF22 Premium Allergen Filter Designed by FilterBuy to fit Shark Models NV22, NV26, NV36A, UV410, UV400, UV410 FilterBuy: Breathe Better!