Intercept Micro Filter Bag - Open Collar - Fits 10 quart- 10 packDon't be fooled by other generic paper vacuum filter bags. Maximize your cleaning efficiency by using only genuine ProTeam filters. To safeguard the Indoor Air Quality of your facilities and to optimize the performance of your vacuum cleaner, change filters once they are half full. These filters are open collared, making them easy to empty and reuse several times. Fit cylindrical 10 quart backpack vacuums and come in a pack of 10.