SPI QuickFill Central Heating Dosing Tool is a fast and mess-free solution for adding chemicals directly into a central heating system through a radiator. Designed for plumbers, heating engineers and DIY users, it allows inhibitors, sludge removers and antifreeze to be added quickly without specialist equipment or pumps. Perfect for: Adding inhibitor to heating systems System maintenance and servicing Introducing sludge remover treatments Adding antifreeze protection Domestic heating repairs and upgrades Features: Fills up to 1 litre in around 17 seconds No pumps or pressurised equipment required Gravity-fed design for simple operation Helps reduce spills and mess Universal BSP 1/2” fitment Compact, durable and reusable Simply fill the tool with your chosen chemical, attach it to the radiator valve connection and allow gravity to do the work. A quick, professional way to treat and protect central heating systems while saving time on site.