2pk Fine Dust Replacement Filter for 3-4 Gallon Wet/Dry Shop Vacuums, 2PK

Whether working with fine dust, collecting cold ashes, or just picking up spilled talc from the bathroom floor you need to capture this fine debris and not blow it back out the exhaust port. The compact WORKSHOP Fine Dust wet dry vac filters do exactly that. The durable 3-layer material capture the smallest of particles, down to 1 micron at 99% efficiency. The large surface area improves airflow and helps resist clogging. WORKSHOP recommends replacing wet dry vacuum cleaner filters at least twice a year to keep your shop vacuum working at its optimum level. Fits: WORKSHOP 3-4 gallon wet dry vacuums, WS0301VA and WS0400DE.