I clean 4 Packs Kit for Shark Navigator Lift-Away NV350, NV351, NV352,NV355, NV356, NV356E, NV357 Pre Filter Foam & Felt x 3,HEPA Filter x 1,Replacement Filter Parts for Shark #XFF350/XHF350 Compatible with: Fit for Shark Navigator Lift-Away models NV352, NV356, NV356E, NV350, NV351, NV355, NV357 Vacuum. Please Check your Vacuum Owners Manual to confirm compatibility. Package & Warranty : 3 PACKS Foam and 1 PACK HEPA Filter for Shark Navigator Lift-Away NV350 Series and A Free Cleaning Brush. I-clean shark replacement filter kits will be more fit for your vacuum cleaner. Trust in I clean brand! it will promise refund if you unhappy with this deal within 30 days. Material: These Shark replacement Parts are made of high-strength and environmental protection material. These replace shark parts can be easier to install and pull off. Keep your Shark Healthy: Wondering why after a while your vacuum seems to not be working so well? Its the dirty and clogged filters to blame! When you frequently change filters, you ensure that your vacuum does its job correctly and works optimally! You have to remember to change foam/felt filters every 2 months and HEPA filter every 6 months. Our 3+1 filter set is the best-valued pack which lasts you 6 months. Washable& Reusable: These replacement shark vacuum cleaner filters and foams can be washed and reused, it will Big save your money. Please remember to clean and replace this filter frequently. It not only can protect your vacuum cleaner,but also make you can breathe fresh air every day