Type D bags by ShopVac. Shop Vac bag replacement number 91964, 9196400 and 919-64-00.
2 bags in a pack with a 4 gallon capacity.
Type D bags fit the following shop vac models:
587-04-00 (4 Gallons), 2860010, 2860011 and 930-04-11. (All Around Plus, Econo Back Pack Vac and Floormaster Plus).
For pick up of fine dust, dirt and debris.