Potterton Ignition PCB 241838. Part No.241838. Potterton Promax 15 HE (GC No. 41-590-58). Potterton Promax 24 HE (GC No. 41-590-62). Potterton Promax HE System (GC No. 41-590-69). We currently are able to accommodate the oldest and deprecated boilers to the very latest energy-efficient central heating systems.
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