Part No: - 0020038572. Vaillant Boiler Spares ecoTEC plus 824 (2012-CURR). Vaillant Boiler Spares ecoTEC plus 824 R1 (2012-CURR). Vaillant Boiler Spares ecoTEC plus 831 (2012-CURR). Vaillant Boiler Spares ecoTEC plus 831 R1 (2012-CURR).
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