Festool CT 36 shop vac filters

Festool CT 36: the cartridge filter is part 203759, and the dust bag is part 496121. Source: Festool, checked November 7, 2026.

1Cartridge filter203759
2Dust bag496121

Part numbers come from Festool (source 1, source 2), checked November 7, 2026. Amazon buttons open a search for the part number; we may earn a commission.

Where the model number is

On a label on the motor head or the side of the tank.