Shark Lift-Around Portable Vac LA400, NP317W, NP318, NP319, & NP320, 2 Foam and 2 Felt Filters, Part # XFF318 by Casa Vacuums Designed to Fit Shark Lift-Around Portable Vac LA400, NP317W, NP318, NP319, & NP320 Series Handheld Canister Vacuum Filters Compare to Part # XFF318 A MUST for Allergy sufferers Washable and Reusable Designed and Engineered by Casa Vacuums in the U.S.A !!