Potterton 21/18867 Puma P/Pilot Modulation Electronic Control PCB

Potterton Puma 100 (Sit/Honeywell) (GC No. 47-590-12). Potterton Puma 100E (Sit/Honeywell) (GC No. 47-590-13). Potterton Puma 80 (Sit/Honeywell) (GC No. 47-590-10). Potterton Puma 80E (Sit/Honeywell) (GC No. 47-590-11).

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