POTTERTON 404495 O/HEAT THERMOSTAT RANCO LM7 P8503. Scottish Gas 80 F2 - 41-590-23. Scottish Gas 60 F2 - 41-590-09. Scottish Gas 50 F2 - 41-590-08. Scottish Gas 40 F2 - 41-589-99. Scottish Gas 30 F2 - 41-589-98.
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