Will fit: WORCESTER CDI 24I NG FSN COMBI BOILER. WORCESTER CDI 24I NG JUNIOR FSN COMBI BOILER. WORCESTER CDI 28I NG FSN COMBI BOILER. WORCESTER CDI 28I NG JUNIOR FSN COMBI BOILER. Products will not be covered if misused or not serviced as per maintenance instructions.
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