The Shop-Vac® cloth filter bag must be used in combination with a 90585 foam sleeve. Made from durable cotton material, this cloth filter can be washed and reused to help save you both time and money. Perfect for pick up of larger debris and dry material. It fit's Shop-Vac® brand wet dry vacuums 5 U.S. gallon* (18.9 litres*) and above; except 5 U.S. gallon* (18.9 litres*) portable model H87S, 5 U.S. gallon* (18.9 litres*) HangUp®, 5 U.S. gallon* (18.9 litres*) Wall Mount and 6 U.S. gallon* (22.7 litres*) long life model P12S Vacuums.