Windsor 68005 VP10 Backpack Replacement Cloth Filter Bag (OEM# 8.619-884.0) 10 Filters/Case, GK-PT565 GK-PT565 Green Klean® Replacement vacuum bags use the highest quality Micro-Plus filter media. Designed specifically for commercial use, they are always equal to, or exceed OEM quality. Better filtration means cleaner air, less dusting, and longer secondary filter life. Each bag is printed to easily identify the vacuum it fits. Clean with Confidence, Replace with Green Klean.