Baxi Potterton Heat Only Combustion Control Unit 24/25 HT 7775020 No PCB
Suitable for below models for Baxi and Potterton. Advance Heat Only 25. 224 Heat Only. 424 Heat Only. 24 Heat Only Ecoblue ERP. Advance Heat Only 25 ERP. 24 Heat Only. 24 Heat Only ERP.