Which filters does the Festool CT 25 take?

Cartridge filter 204201, Dust bag 577484, Dust bag 577485.

Festool CT 25 shop vac filters: 204201

Cartridge filter

Pleated cartridges clog with use. Replace one that stays dirty after a rinse.

Shop the cartridge filter on Amazon Other models that use 204201

Dust bag

Bags made to fit this model's inlet and tank.

Shop the dust bag on Amazon Other models that use 577484

Dust bag

Bags made to fit this model's inlet and tank.

Shop the dust bag on Amazon Other models that use 577485

1Cartridge filter204201

2Dust bag577484

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.

Other Festool shop vacs

CT 15CT 22CT 26CT 33CT 36CT 36 ACCT 48CT 48 AC