Home Revolution Replacement Foam & Felt Filter, Fits Shark Navigator Lift Away Part XFF350 and NV350 Series Models (1 Foam & Felt Kit) Designed to fit: Shark Navigator Lift Away part XFF350 foam & felt filter and NV350 series models NV350, NV351, NV352, NV355, NV356, NV356E, NV357 Replace with confidence: We back all of our USA engineered products with a 100% satisfaction guarantee Breathe easy: Washable, reusable foam & felt system removes allergens, impurities, and odors from the air and refreshes your home The Home Revolution mantra: Premium quality replacement products at a low price What you get: 1 foam & felt filter