Vaillant Ecotec Standard Horizontal Flue. The Vaillant Standard Horizontal Flue is suitable for the entire range of Vaillant boilers. Length 754mm. Diameter 100mm. Push Fit Connection. Vaillant part no. 303933. All flues have a simple push-fit connections & stylish white finish so you will have everything you will need to connect your flue to your boiler. Standard Horizontal All Ecotec boilers fit a 100mm Diameter Concentric Flue System.

Compatible With:

• Vaillant Ecotec Exclusive Combi.
• Ecotec Plus Combi.
• Ecotec Pro Combi.
• Vaillant Ecotec Plus Regular (open Vented).
• Vaillant Ecotec Plus System Boilers
• Vaillant EcoFit Pure Boilers