Fernox F3 Cleaner 265ml

£15.45 Incl. VAT

In stock

Free delivery over £250 (Exceptions Apply)
Next Day Available | 30 Day Return Policy
Further Delivery Information

Product Overview

Fernox Cleaner F3 265ml is a universal, fast acting and effective pH neutral cleaner for central heating systems. It is designed to remove debris, sludge and scale from existing systems. It restores heating efficiency and eliminates boiler noise. Designed for pre-commission cleaning of new installations in accordance with BS 7593:2019, by removing flux residues and other debris to help extend the life of a system.

Part of the tried and tested Fernox Cleaner range, this 265ml product offers reduced packaging and waste without compromising on high performance, quality and ease of use. This conveniently size bottle can treat an average 100 litre system or 12 radiators and maybe dosed via a TF1 Filter.

Cleaner F3 can be used for all types of cleaning methods; manual or magnetic flushes and for heavily sludged systems, Cleaner F3 can be used in conjunction with a powerflushing unit.

Cleaning a central heating system using Fernox Cleaner F3 and protect with Fernox Protector F1 can restore and maintain system efficiency resulting in a gas saving of up to 15% every time you heat your room.

Features and Benefits

  • Universal cleaner for pre-commissioning new systems in accordance with BS 7593:2019
  • Removes sludge, limescale and installation debris
  • Suitable for use on new and existing systems to optimise efficiency
  • Compatible with all metals and materials in heating systems, including aluminium
  • Treats an average sized UK home of up to 100L, 12 radiators and 190 sqm of underfloor heating. Smaller volume product – less packaging waste and lower environmental impact.
  • pH Neutral, non-hazardous formulation
  • Product code: 62455

Delivery Information

We have multiple delivery options

  • Next Day Carrier
  • Delivery From Branch 1-5 Working Day
  • Pallet -1-3 Days
  • Standard 1 -3 Day Carrier
  • Economy 1-3 Day Carrier
  • Click & Collect from store


The cost of the carriage will be displayed before your final checkout. Free delivery is available on most items for orders over £250, exceptions do apply.

Click And Collect

Please note that our stock levels are not live. Please contact your local branch prior to purchase, so that we can ensure the product is available to you. If the product isn’t available, we can organise this through an alternative branch.


  • Orders will only be dispatched and delivered on weekdays.
  • Orders for the next working day delivery must be placed before 2 pm, this gives us time to pick and pack before the carrier arrives to collect.
  • We aim to dispatch all carrier delivered items within 48hrs, and all items delivered on our own transport within 5 days, Monday to Friday. Saturday Delivery can be made upon request, depending on availability.
  • An email will be sent when your goods leave us via Carrier, this email will include tracking information. If your order is delayed for any reason, we will contact you.
  • If delivery is from a Branch, then a member of our team will be in contact with you.


We pride ourselves on our customer service, but mistakes can happen. If you receive an incorrect or faulty item, please notify us within 30 days to arrange a refund, return or exchange.


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