Type A HEPA disposable paper vacuum bags.
4 genuine Koblenz HEPA bags in a package.
Koblenz bag number 45-0766-1 and 4507661.
Examples of Koblenz upright vacs that use the Type A bag includes:
U-90 ZA, U-90 ZA SOA, U-80 ZA SOA and U-80 ZA
The bags have filtration efficiency of 99.97% at 0.3 micron particle size
They help retain pollen, bacteria, dust mites and allergens.
Same size as Koblenz Type A paper bag 45-0766-01-9 and 450766019.