2 EnviroCare Washable Foam and Felt Pre-Filter Replacement Kits 1 HEPA Filter | | Fits Shark Navigator Lift-Away Models: NV350, NV351, NV352, NV355, NV356, NV356E, NV357 | | Replaces: Shark Euro-Pro Part Number XFF350 XHF350 | | 99.7% Filtration | | Designed Manufactured By Envirocare Technologies #F650 #F651 | |