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  • Heating Heating Elements & Accessories Heating Chemicals & Cleaning Fernox Leak Sealer F4 500ml

    Fernox Leak Sealer F4 500ml

    56603

    £40.32 inc. VAT

    £33.60 ex. VAT

      Typically available in 2-4 working days

    • 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.

      • 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.
      Brand
      Fernox
      Category
      Central Heating Leak Sealers
      Product Code
      56603
      Size
      500ml
      Weight
      600 g
      Width
      88 mm
      Height
      182 mm
      Depth
      52 mm
      GTIN
      5014551566033
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    • Collect in-store

      Collection available between 7am and 5pm.
      Please have order confirmation with you.
      Please wait for us to contact you before making your way to collect your items.
      We will hold your order for 1 working week before returning the items.

      Estimated collection Wednesday 24th.

    • Our delivery policy

      Small to medium parcels are sent via courier. Any delivery instructions can be arranged via their website or app.

      Larger products are delivered via a pallet. Please note pallet deliveries are curbside and delivered by a third-party company. The drivers are not insured to take the delivery indoors and we recommend you arrange for two people to receive the delivery.

      If your property is not reachable i.e up a flight of stairs, a narrow street or a gravel road delivery will be made as near to your property as possible.

      Order before 3.30pm for estimated delivery between Wednesday 24th and Friday 26th.

    • Our returns policy

      See our Terms of Sale for our returns policy.
      Restocking charges apply.

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