Use the Shop-Vac® Foam Sleeve for picking up wet messes when used alone. The Foam Sleeve is also required when using reusable dry filters. The approximate size of the foam sleeve is 8 inch diameter and 6.5 inch high. The foam sleeve is required unless you are using a cartridge filter.
It fit's Shop-Vac® brand wet dry vacuums 5 gallon* and above (except 5 gallon* portable model H87S, 5 gallon* HangUp®, 5 gallon* Wall Mount and 6 gallon* long life model P12S vacuums).