The Vaillant packing ring is designed for use in the heat exchanger of Guernsey or Jersey only condensing, ecoFIT VU condensing, ecoFIT VUW condensing, ecoTEC VU condensing, ecoTEC VUW condensing, ecoTEC VUI condensing, ecoMAX VU condensing, ecoMAX VUW condensing, and 60/100 PP condensing boilers.
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