Vaillant Ecotec Plus Gas Valve 0020148383 for Models 612, 615, 618, 624, 630 637
Vaillant Ecotec Plus 612, 615, 618, 624, 630, 637. Vaillant Ecotec Plus Boiler Models (Continued). Vaillant Ecotec Plus 637 VU 376/5-5 (2012-2012). Vaillant Ecotec Plus 637 VU 376/5-5 A R4 (2015 Onwards).