Replacement for Shop vac 91964, Type D, Pack of 3 These High Efficiency Filter Bag can be used for your everyday pick up needs Disposable Collection Filter High Efficiency Filter Bags Easy to use and install Fits standard 4 Gallon shop vacs and all other brands (Such as DeWalt, Craftsman, Ridged, Etc.) using 4 , gallon bags This bags keep your tank clean and makes clean up a breeze Prevents dust from escaping, reducing the time required to clean the vacuum High efficiency best quality guaranteed! if you are not sure if it fits your vacuum, please don't hustle to ask on the listing page, and will answer you within 24 hours.