Improves heat transfer efficiency and reduces fuel bills for central heating systems;Effective against boiler noise and improves system efficiency;Easy to use, leave in the system permanently;Treats 100L system or up to 10 single radiators;Compatible with all metals and materials commonly used in central heating systems

• Fernox 60217 500ml F6 Energy Saver

Fernox 60217 500ml F6 Energy SaverFernox