Vaillant 0020135131 0020018182 Ecotec Plus 615 618 624 831 Main Heat Exchanger
Part Number:0020018182 now 0020135131. Ecotec Plus 612, 615, 618, 624, 630, 637 –GC No. ECOTEC PLUS 612, 615, 618, 624, 630, 637. Ecotec Plus 612, 615, 618, 624, 630, 637. Ecotec Plus 624 VU 246/3-5.