Kitchen & Bathroom Sale now on
Skip to content Skip to navigation menu
  • Ideas & Advice
  • Store Locator
  • Basket
    0
Basket
0

Fernox F4 Central Heating Leak Sealer - 500ml

Product code: 227668
New
£16
£3.20 per 100ML
Excluding delivery
Currently in Stock
Delivery Next day available

Enter your postcode to check delivery stock in your area & add to basket Check stock & add to basket for delivery to: A reduced quantity will be added to your basket

Please enter a valid postcode

Standard Delivery - From £4

From £4

Orders that weigh over 375kg may incur an additional Big and Bulky delivery charge. Please refer to our Delivery Details for more information.

We deliver Monday - Saturday, between 7am and 7pm.

Delivery exclusions apply.

Fernox F4 Central Heating Leak Sealer is an internal leak sealer designed to treat small, inaccessible leaks and weeps within a central heating system that can cause pressure loss. Once added to the system, the product finds the area of oxygen ingress and forms a polymer to seal the pinhole leak. It is effective within 1 to 24 hours of application and doesn't cause blockages in the boiler, pumps, or other system components. A leak can be quickly and efficiently sealed without the need for a complete system drain-down.
Read more
Read less
Standard Delivery - From £4

From £4

Orders that weigh over 375kg may incur an additional Big and Bulky delivery charge. Please refer to our Delivery Details for more information.

We deliver Monday - Saturday, between 7am and 7pm.

Delivery exclusions apply.

Product details
  • Depth: 52 mm
  • Height: 182 mm
  • Width: 88 mm
  • Weight: 0.60 kg
  • Size: 500 ml
  • Type: Leak Sealers
  • Manufacturer Model No: 56603
  • Country Origin: United Kingdom
  • Brand Name: Fernox
  • Made To Order: N
Features & benefits
  • Suitable for use with central heating systems, including underfloor heating
  • One bottle treats up to 130 litres system (16 radiators), or 250 sqm of underfloor heating
  • Helps in reducing pressure loss from sealed systems
  • Seeks out and seals inaccessible, internal microscopic leaks fast
  • Seals small pinhole leaks and weeps within systems
  • Compatible with all common metals, including aluminium
  • Starts to work within 1 to 24 hours after application
Data sheets
Customers' gallery
Reviews