This part uses the following part numbers: Immergas - 1.024485 Immergas - 1.020666 Immergas - 1.021174 Biasi - BI1596101 Biasi - BI1376105 Ariston - 999397 The part is compatible with the following boilers: Immergas Mini 24 (up to 2010) Biasi Parva Biasi Rinnova Ariston Microgenus
