Shop Vac 3 Reusable Dry Filters 90137 General household filtration. Dry pick up. Perfect for Large debris, Wood chips, nails, Metal shavings, Nuts and bolts, Broken glass, Gravel. For general purpose dry pick-up cleaning. Can be hand-washed and reused. 3 Filters in Pack. For dry pick-up only. Replaces 901-01 paper filter bag. Fits most Shop-Vac brand Wet/Dry Vacs. Manufacturer Part No.: 90137