Baxi | Potterton | Main 3 Way Valve Motor Actuator 7216534. Part No. 7216534. Potterton Heatmax Combi 24 HE (GC No. 47-393-27). Potterton Heatmax Combi 28 HE (GC No. 47-393-28). Potterton Heatmax Combi 33 HE (GC No. 47-393-29).
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