Box opened but new inside The Potterton 21/18602 Sequence Control Printed Circuit Board (PCB) is a boiler part specifically designed for the Potterton PUMA 80 model, manufactured in the United Kingdom. This beige-coloured PCB is a unit that powers gas boilers, ideal for indoor heating systems. With a focus on quality and reliability, this new printed circuit board is a crucial component for ensuring efficient and effective heating in your home or building.
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