HEPA, Foam and Felt Filter Kit Fits Shark Lift-Around Portable LA400, NP317W, NP318, NP319 and NP320, compare to XFF318 XHF319 by Casa Vacuums Shark Lift-Around Portable Vac HEPA, Foam & Felt Filter Kit for models; LA400, NP317W, NP318, NP319 & NP320 Compare to Genuine Part #'s XHF319 & XFF318 Washable and Reusable A MUST for allergy sufferers Designed and Engineered by Casa Vacuums in the U.S.A !!