Shop-Vac® High Efficiency Filter Bags are ideal for picking up fine dust, such as, drywall dust, cement dust and cold ashes. They are easy to use and install. The bags keep your tank clean and makes clean up a breeze. Simply, remove the bag from the tank inlet and throw it in the trash. Two bags are included in a pack. Fits 4 U.S. gallon* (15.1 litre*) All Around Plus® and FloorMaster® model E87. For dry pick up only. Non-hazardous, non-toxic, non-flammable materials only.