Vaillant 835543.01 Flue Elbow / Air Intake Duct – ecoTEC turboTEC Glow-worm – Genuine OEM. Likely Fits: Vaillant ecoTEC plus 824 / 831 / 837 Likely Fits: Vaillant ecoTEC plus 824 / 831 / 837Flexicom, Ultracom modelsSaunier Duval Themaclassic and Themafast F (equivalent variants. ).
