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    Fernox Leak Sealer 500ml F4

    Manufacturer: Fernox
    Fernox Leak Sealer F4 is a fast-acting, long-lasting leak sealer that can stop leaks in your central heating system. It is safe to use on all types of boilers and pipes, and it will not damage your system.
    SKU: 56603
    Availability: In stock
    £22.21 incl tax
    i h
    Delivery date: 1-2 days

    • Ideal for reducing pressure loss from sealed systems

    • Seeks out and seals inaccessible, internal microscopic leaks fast

    • Saves time and money on draining down the system and repair costs

    • Safe to use – does not cause blockages in pipework or vulnerable boiler components such as pumps, air vents and heat exchangers

    • Designed to be left permanently in the system – compatible with all metals and materials, including aluminium

    • One 500ml recyclable bottle treats up to 130 litres of system water (16 radiators) and the equivalent of 250m2 of underfloor systems.

    Products specifications
    Product Type Leak Sealer
    Manufacturer Fernox
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