Introducing the Replacement 2 Foam & 2 Felt Filters, Fits Shark NV450 Series, Compatible with Part XFF450! Keep your Shark vacuum cleaner running like new with this convenient filter set. Our filters are made from high-quality materials to ensure long lasting performance and reliable cleaning power. Plus, they’re compatible with part XFF450 so you can be confident that you’re getting a perfect fit for your machine. Don't let dirt and dust build up in your home - keep it clean and fresh with these replacement filters!