Shark NV350 Filter Bundle HEPA Post Filter & Foam & Felt Filter Set. Fits NV350, NV350A, NV350E, NV350Q, NV350T, NV350W, NV350WC, NV350WM, NV351, NV352, NV355, NV356, NV357, NV360, NV370, NVLFT199, UV440 Vacuums Parts XHF350 & XFF350. Designed & Engineered by Best Vacuum Filter. This is not a SharkÂ® OEM product and is not covered under any SharkÂ® manufacturer's warranty. The SharkÂ® brand names and logos are the registered trademarks of their respective owners. Any use of the SharkÂ® brand name or model designation for this product is made solely for purposes of demonstrating compatibility.