FITS: 3 to 4 gallon CRAFTSMAN shop vacs HEPA RATED MATERIAL: Traps pollen and common allergens like pet dander, mold spores and dryer lint EFFECTIVE FILTRATION: Captures pollen, allergens, fine particles, and everyday dirt WASHABLE FILTER MATERIAL: Filter material can be washed and reused for better filtering of debris FOR OPTIMAL PERFORMANCE: Replace vac filters regularly to keep your shop vacuum running like new