4 Pack

Type A HEPA disposable paper vacuum bags.

Koblenz bag number 45-0766-1 and 4507661.

Examples of Koblenz upright vacs that use the Type A bag includes:

U-75 ZA,U-110ZA, U-310ZA, U-510ZA, U-610ZA

The bags have filtration efficiency of 99.97% at 0.3 micron particle size

They help retain pollen, bacteria, dust mites and allergens.