This part uses the following part numbers: Baxi - 721890300 - 0020041905 - 2000801921 The part is compatible with the following boilers: Baxi Eco Four Baxi Eco home Baxi Eco-3 compact Baxi Eco-3 Baxi Eco-4s Baxi Fourtech Baxi Luna-3 Baxi Luna-3 Comfort Baxi Main Baxi Main digit Baxi Nuvola-3 comfort
