The FERNOX Fernox System Neutraliser is a 2 litre solution specifically designed for underfloor and central heating systems. Developed by the trusted brand Fernox, this product is ideal for use in boilers to ensure efficient and effective heating. By neutralising harmful substances in the water, this system cleaner helps to prolong the lifespan of heating systems and maintain optimal performance. Perfect for DIY enthusiasts and professionals alike, the Fernox System Neutraliser is a must-have for anyone looking to keep their heating systems in top condition.