The Everbuild P28 Central Heating System Filter Fluid is designed to significantly enhance the performance and longevity of your heating system. This powerful additive uses innovative technology to safely and effortlessly remove and circulate magnetite deposits, which are major culprits in heating system inefficiency and reduced lifespan. With just a single drop, the filter fluid is fully activated, creating a barrier that dissolves and clears away these stubborn mineral deposits. The result is a more efficient and energy-saving heating system, ensuring you maintain comfort all year round. Experience the difference and invest in this invaluable product for your heating system's health and your wallet.