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Fernox F4 Leak Sealer 500ml

Fernox F4 Leak Sealer 500ml

SKU: W-FX-F4-500ML

Leak Sealer F4 is suitable to be used throughout a central heating system to seal small leaks and weeps which may cause pressure loss and boiler breakdown. Once dispersed within the system it will be effective 1-24 hours after application. The unique sealing efficiency of this proven product has been specifically developed to prevent blockages or restrictions within the boiler or vulnerable system components such as pumps and safety devices.

  • 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
  • Height (mm) 190.0
    Width (mm) 90.0
    Depth (mm) 50.0
    Material Fluid
    Finish Clear
    Boxed Weight 0.560 kg
    Unboxed Weight 0.560 kg
    Warranty See manufacturer
    • Fills weeps and small inaccessible leaks
    • Anti Block - Will not foul pumps or air vents etc
    • Reduces pressue loss from sealed systems
    • Prevents loss of time and money, draining down the system and repairing