Will fit: VIESSMANN VITODENS 100 WB1C COMBI BOILER. VIESSMANN VITODENS 26KW COMBI BOILER. VIESSMANN VITODENS 30KW COMBI BOILER. VIESSMANN VITODENS 35KW COMBI BOILER. Products will not be covered if misused or not serviced as per maintenance instructions.
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