- Manufacturer guarantee – 10 years
- Protects against corrosion and scale in mixed metal central heating systems.
- For open vented systems, add the product via the header tank. For sealed systems, add via a filling loop or the radiator using a Fernox injector.
Features and benefits
- Gives long-term protection of mixed metal domestic central heating systems against internal corrosion and limescale formation. It prevents corrosion of all metals found in these systems
- When used in conjunction with Cleaner F3, gas savings of up to 15% can be achieved every time you heat your room
- Carbon Footprint certified by the Carbon Trust
- Stops frequent venting of radiators
- Reduces maintenance costs and saves on fuel bills
- Keeping your home’s heating as efficient as possible helps to save energy














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