Fernox 500ml F4 (LS1) Internal Leak Sealer 56603
In stock
Product Code:
LJC03705
£36.84
£30.70
•Used to seal small, inaccessible leaks and weeps in central heating systems
•A leak can be quickly and efficiently sealed, without the need for a complete system drain down
•Ideal for reducing pressure loss from sealed systems
•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
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Fernox 500ml F4 Internal Leak Sealer is for use throughout a central heating system to seal small, inaccessible leaks and weeps which may cause pressure loss and boiler breakdown. Once dispersed within the system, it will find the area of oxygen ingress and will form a polymer to seal the pinhole. One 500ml recyclable bottle treats up to 130 litres of system water (16 radiators) and the equivalent of 250m2 of underfloor systems.
