POTTERTON PERFORMA SYSTEM 12 18 24 28 HE BOILER OVER HEAT THERMOSTAT 248079
Potterton Performa 28 HE System - 41-591-27. Potterton Performa 18 HE System - 41-591-25. Potterton Performa 12 HE System - 41-591-24. Potterton Performa 24 HE System - 41-591-26. Potterton Performa 24 Eco HE - 47-393-11.