Genuine part The BNIB Glow-Worm 12HXI 15HXI 18HXI 24HXI 30HXI Boiler PCB 0020023825 is a vital component for residential boilers. This printed circuit board is designed specifically for Glow-Worm boilers, ensuring compatibility and reliable performance. Perfect for DIY enthusiasts or professional technicians, this PCB is essential for maintaining and repairing heating systems in any home. Its high-quality construction and precise engineering make it a key component in the efficient operation of your boiler.