Sanitaire F&G upright vacuum cleaner bags by Electrolux.
Sanitaire bag number 63250 and 63250A.
5 Sanitaire F & G replacement bags in package.
Premium allergen filtration Sanitaire vacuum bags.
These bags connect near the base of the vacuum and these vacuums are typically commercial models that have a canvas vacuum bag that on the back of the vacuum.
Sanitaire S661 upright vacuum is an example of a Sanitaire vacuum that uses F and G bags.