How does Fernox Leak Sealer F4 work?

A look at how Fernox Leak Sealer F4 solves central heating system pressure loss issues that are caused by micro leaks.

- Ideal for reducing pressure loss from sealed systems
- Seals most weeps and small inaccessible leaks
- Saves time and money on draining down and repairing
- Does not cause blockages of pump, air vents etc
- Compatible with all metals and materials commonly used in central heating systems

-------------------------------- https://fernox.com/product-category/leak-sealers/ --------------------------------

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Видео How does Fernox Leak Sealer F4 work? канала Fernox