Techypro Shark Navigator Lift Away Filter Nv350 Sets, Fits Nv351, Nv352, Nv355, Nv356, Nv357, 1 Pre-Filter Foam & Felt and 1 Hepa Filter for Shark Part # Xff350 & # Xhf350 Fit Shark Navigator Lift Away models NV350, NV351, NV352, NV355, NV356, NV356E, NV357 compatible for Shark Part # Xff350 & # Xhf350 100% Compatible with Original machine Washable and Reusable Kit includes 1 pcs foam & filter and 1 HEPA filter as shown in the picture