Gold Line SHARK Type XFF36 Filter Kit (1 Foam & 2 Felt) for Shark Navigator Deluxe NV42 Upright Vacuum Cleaners. Genuine filters. Compare to Shark XFF36 filters; Includes 3 filters Washable and Reusable filters designed to fit Shark Navigator Deluxe NV42 Upright series vacuum cleaners Engineered with care and expertise to exceed OEM standards Gold Line products are backed by our Money Back Guarantee on quality and fit Designed and Produced by Gold Line- Look for the Gold Line label to ensure authenticity!