The Todays Tools Chem-Fill Central Heating Tool is an essential device for plumbers and heating engineers to safely add chemicals, inhibitors, and cleaning agents into central heating systems. Designed for quick and controlled dosing, it helps maintain the efficiency and longevity of heating systems by preventing corrosion, sludge buildup, and other common issues. Easy to use and compatible with most heating systems, the Chem-Fill tool ensures accurate chemical application without system drainage or mess. A practical solution for routine heating maintenance and system protection.