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Fernox Central Heating Leak Sealer F4 500ml

SKU: HTAFX007
Fernox Leak Sealer F4 is a internal leak sealer developed 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, the product finds the area of oxygen ingress and forms a polymer to seal the pinhole. Effective within 1-24 hours after application, the unique sealing efficiency of this market-leading water treatment chemical has been proven to not cause blockages or restrictions within the boiler or vulnerable system components such as pumps and safety devices. A leak can be quickly and efficiently sealed, without the need for a complete system drain down.
Features & benefits
  • 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.
IDHTAFX007 Electrics & Plumbing > Plumbing > Plumbing Consumables > Fernox Central Heating Leak Sealer F4 500ml

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Fernox Leak Sealer F4 is a internal leak sealer developed 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, the product finds the area of oxygen ingress and forms a polymer to seal the pinhole. Effective within 1-24 hours after application, the unique sealing efficiency of this market-leading water treatment chemical has been proven to not cause blockages or restrictions within the boiler or vulnerable system components such as pumps and safety devices. A leak can be quickly and efficiently sealed, without the need for a complete system drain down.
Features & benefits
  • 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.

Specifications
Product Name Fernox Central Heating Leak Sealer F4 500ml
Brand Fernox
Product Type Leak Sealers
Manufacturer Name Fernox
Manufacturer Part Number 56603
EAN 5014551566033
Commercial Or Domestic Use Domestic  
Colour Off White  
Application Interior  
Pack Quantity 1  
Country Of Origin United Kingdom  
Recyclable No  
Renewable No  
Age Restricted Product No  
Volume 500  ml
Delivery Information
Next Day Delivery Next day delivery if ordered by 10am (subject to availability and location). Delivery online is only available for orders over £100 (ex VAT)* 

Jewson Cash/Credit Account customers: Delivery online is free* 

Non-Jewson account customers: Delivery is free for orders over £200 (ex VAT), orders between £100-£200 (ex VAT) incur £40 (ex VAT) delivery fee*

*Excluding Tool Hire and non-standard delivery areas.

Click & Collect Collect in 15 minutes (subject to availability and location)