The Shop Vac Type R Foam Sleeve is an essential component for managing wet messes with precision and efficiency. Specifically designed for wet pick-up applications this foam sleeve serves as a crucial barrier when used alone effectively preventing liquid debris from infiltrating the vacuum motor. Additionally it is a mandatory accessory when paired with reusable disc filters such as the 90137 style to ensure optimal performance. During extensive water pick-up tasks the foam sleeve plays a vital role in maintaining the integrity of your vacuum by safeguarding its motor from potential damage caused by debris and liquid accumulation.