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Fernox F4 EXPRESS Fernox F4 Aerosol Leak Sealer 400Ml
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Available now at Heatparts: Fernox F4 Express Leak Sealer 400ml – a genuine, non-flammable aerosol solution designed to seal small, inaccessible leaks and weeps in central heating systems. Utilising Barrier Pressure Pack technology, it delivers a quick and efficient seal without the need for system drain-down. Effective within 1–24 hours, it prevents blockages in sensitive components like pumps and heat exchangers. Suitable for systems up to 130 litres (16 radiators or 250 m² of underfloor heating). Available for next day delivery.
Fernox F4 EXPRESS Fernox F4 Aerosol Leak Sealer 400Ml is backordered and will ship as soon as it is back in stock.
Fernox F4 EXPRESS Fernox F4 Aerosol Leak Sealer 400Ml
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