Vaillant O-ring R21x25 (10 pcs): original Vaillant spare part, type: O-ring. Application: Boiler (Combiketel Turbo CWK 24-12). Manufacturer number: 981175; Instalpunt article number: 8052812.
According to the Vaillant parts lists, this part fits 56 models, including Vaillant Combiketel Turbo CWK 24-12, Vaillant Combiketel Turbo CWK 24-12 E SO28 and Vaillant Combiketel Turbo CWK 24-12 SO28. The full list is under “Fits”.
Available in approx. 7–10 days: this item is ordered specially for you and shipped as soon as it arrives in our warehouse; delivery within the EU then usually takes 3–5 working days.
Check the rating plate of your appliance before ordering; if in doubt, ask the manufacturer or your installer. Work on gas-carrying parts must be carried out by a qualified gas engineer.




