Shark NV22L Foam & Felt Vacuum Filter Kit - Pack of 4. Designed by FilterBuy to Replace Shark Part # XF22. Kit includes all 4 filters used on Shark NV22L Vacuum 2 Foam Circular Filters, 1 Felt Circular Filter, & 1 Felt Exhaust Filter 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!