These are 10 genuine Pro-Team canister vacuum cleaner bags, part number 104544. Fits ProTeam models ProClean, QuietPro, RunningVac, and Sequoia canister models. Each bag has 698 sq. inches of filter media, and measures approximately 9" diameter opening, 18" long, and 7" wide. These Intercept Micro Filter bags are the first of 4 level filtration systems on ProTeam vacuums. The inner micro filter layer of the bag helps capture airborne allergens from escaping the bag, and keeps more dust inside the vacuum bag, and not into the air you breathe. Dirty filters restrict airflow, resulting in reduced suction and overheating of the vacuum cleaners motor. Replace these bags / filters frequently to prolong the life of your vacuum cleaner. Genuine ProTeam Part Number 104544, UPC 693822045443.