The Shop-Vac super performance dry filter must be used in combination with a 90585 foam sleeve. Save money and another trip to the local store with these economical, reusable disc filters. Just wash and reuse. Made from durable Dacron® material and comes with easy to use mounting ring. Perfect for pickup of larger debris and dry material. This filter fit's Shop-Vac brand wet dry vacuums 5 gal and above (except 5 gal portable model H87S, 5 gal HangUp®, 5 gal wall mount and 6 gal long life model P12S Vacuums).