Part No: - 0020135159. Vaillant Boiler Spares ecoTEC plus 612 (2012-CURR). Vaillant Boiler Spares ecoTEC plus 612 R1 (2012-CURR). Vaillant Boiler Spares ecoTEC plus 615 (2012-CURR). Vaillant Boiler Spares ecoTEC plus 615 R2 (2012-CURR).
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