Fernox Limescale Preventer 450g - 61015

6 reviews

£21.93 (Inc. VAT)

In Stock


Plumbworld has the lowest price for this product!


The Limescale Preventer from Fernox is designed to stop the build-up of limescale through the hot and cold water system. Saving you money on descaling and fuel bills while prolonging the life of the system.

The product is fully submerged near the water inlet in the cold water storage tank and should be replaced annually for continued protection.


Features and Benefits:

  • Saves you money on fuel bills by extending the life of your system.
  • Prolongs the life of household appliances.
  • Prevents build-up of limescale on both the hot and cold supplies throughout the home.
  • Tried and trusted for over 25 years and completely safe to use.
  • The most economical way to stop scale build-up
  • The best "Bag in the tank" reducer for scale.
  • 450g box








CE Approved


Fernox Limescale Preventer 450g - 61015

£21.93 (Inc. VAT)

Stock status: In Stock
Order in next for delivery on Saturday - 18/09/2021

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Delivery to your home, 6 days a week with a next-day option for orders placed before 3:00pm.

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365 Day Returns

Returns Policy - Changed Your Mind?

If you change your mind about the product when you receive it you can notify us any time within 365 days and return it for a full refund at your own cost. Any refunds will be made within 30 days of receiving your returned item. You are expected to cover the cost to return the item and your initial delivery charge will not be refunded.

More details here

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Prices last checked on 16/09/2021
All prices are inc VAT and include delivery charges

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6 Product Reviews

  • Paul McCombie
    5/ 5

    This does work, reducing limescale and softening the water to an extent as soon as you have used up the untreated water in your tank. The previous reviews agree with my own experience. Reviews elsewhere mention a build up of white deposits in the tank - if these are chalk as reported then we know the product is working. It's much simpler and cheaper than a water softener.

  • Esme
    5/ 5

    Delivery quick and best price. We have used this product in our cold water tank in the loft every 6 months for years as recommended by our plumber and it works in reducing limescale.

  • Pa
    5/ 5

    I suspend the bag in my cold water tank in my loft and this helps keep limescale at bay - need to replace every 6 months to keep up the effect.

  • Av
    5/ 5

    The limescale preventer came well packed & very quickly after it had been ordered. Installation was very easy. No problems.

  • Mike Smith
    5/ 5

    This trusted Fernox product treats our water, and ourselves, to a comfortable shower in our extremely hard water area!

  • Adison Perkins
    4/ 5

    I hung this in the water tank near the inlet from a spare length of copper pipe. It is therefore only effective for water coming from the hot tap, or cold water for showers which is taken from the header tank. Within a day or two, we seemed to need less shampoo, and fittings in the shower did not scale up as quickly - but they do still scale up. Fernox recommend replacing every six months, and this may be what is needed in a hard water area we are on our third. So not totally effective, but good enough to be worth the cost compared with installing and running a water softener.