Fernox DS-40 Descaler And Cleanser

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Fernox DS-40 Descaler And Cleanser

SKU: 4527

Estimated Delivery:

5 to 8 Working Days ✝FREE
Orders placed before 1pm are processed the same day, delivery times are between 8am & 6pm Monday to Friday, all deliveries require a signature, for delivery instructions please use the notes section during checkout.
Please see below for Items you will also require for this product.

Availability: In stock

Regular Price: £59.95

£53.67 (inc VAT)

✝ Subject to stock availability. UK Mainland only. Delivery fees and times to Northern Ireland, Scottish Highlands & Isles, Isle of Man, Isle of Wight, Isles of Scilly, and the Channel Isles may vary. Deliveries are made during working days only.

Product Description






Product Uses
Fernox DS-40 is a powerful descaler and sludge remover for cleansing domestic central heating systems and eliminating boiler noise.DS-40 is only recommended for whole system cleansing where the system is known to be sound.If there has been a history of leaks, or weaknesses are suspected, usually on older installations, Fernox Heavy Duty Restorer (Superfloc) should be used.


Separate boiler de-scaling with DS-40 can be carried out safely on systems of any age following whole system cleansing with Heavy Duty Restorer (Superfloc).Fernox DS-40 will dissolve oxide sludge and limescale to leave metal surfaces completely clean.Use of neutraliser sachet provided in the pack ensures that the system is fully conditioned prior to the addition of a suitable Fernox Central Heating Protector.


Fernox DS-40 is well inhibited and compatible with all metals and other materials commonly used in central heating systems, including aluminium. Fernox DS-40 is also suitable for use with all know acid resistant makes of powerflushing unit.


The procedures outlined on this sheet can all be carried out with the boiler and radiators in situ.The boiler is needed during cleansing operations.


Product Features
  • Powerful descaler and sludge remover for cleansing domestic central heating systems
  •  Eliminates boiler noise
  •  Compatible with all metals and materials commonly used in central heating systems
  •  Restores heating efficiency
  •  Reduces fuel wastage
  •  Complete pack including neutralising agent
  •  Leaves metals surfaces clean 

Technical Information

Additional Information

SKU 4527
Manufacturer ID TPARB1412


Here at TradePlumbing.co.uk we have voluntarily extended our returns period to 90 days, as we understand that sometimes there may be the odd item left over from a project or you may have an unexpected delay to a project meaning that you need the added peace of mind when ordering products in case a return is necessary.

We truly believe in being able to offer customers a flexible service and this extended period allows us to go that little extra to help you when in need, as long as goods are returned in the same condition as received we are happy to help.

To return any time initially please email your request to our Customer Support team at customerservice@tradeplumbing.co.uk along with your TP - Order Reference, please allow at least 1 working day for response and we will take it from there.

To View our complete Return Policy Click on Return and Refunds