 This Has Replaced Part Code 17978
Compatible with the following Vaillant Boilers
Vaillant Ecotec Pro 28
Vaillant Ecotec Pro 24
Vaillant Ecotec Plus 824
Vaillant Ecotec Plus 831
Vaillant Ecotec Plus 837
Vaillant Ecotec Plus 937
Replaces existing Brass Diverter
All Vaillant Boiler Parts are available to collect at our trade counter of order on-line for next working day delivery !
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