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Fernox Express Leak sealer, 265ml

Sold & shipped by B&Q

£86.79 per L
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Product details

Product information

  • Manufacturer guarantee - 10 years
  • Internal leak sealer, seeks out and seals most weeps and leaks. Ideal for reducing pressure loss from sealed systems.

Features and benefits

  • Quick and convenient – doses in 30 seconds
  • Simple to use with no mess
  • Added via a radiator adapter or filling loop supplied
  • Saves time and money on draining down and repairing
  • Seeks out and seals most weeps and leaks
  • 100% recyclable can
  • Non-toxic, environmentally friendly formulation

Health and safety

Please note that this item has additional safety or regulatory datasheets available. The product may have possible health and safety hazards covered in these documents. Refer to the container for full information and always follow the instructions.


Pack quantity1
Model name/numberF4
Product code5014551582323