Fernox F1 Central Heating Inhibitor & Protector Express 400ml

By Fernox Product code: 45161 Pack size: Each

£24.78 Exc. VAT £20.65

Product Details

Inhibitor which protects against corrosion and limescale formation in domestic central heating systems.

Inhibitor which protects against corrosion and limescale formation in domestic central heating systems. Suitable for use with all metals and materials commonly used in heating systems. For long-term protection ensure concentration levels are maintained and checked annually as part of the boiler or system service.

• Protects against corrosion and scale in mixed metal central heating systems to prevent breakdown and premature boiler failure
• Quick and convenient – doses in 30 seconds via radiator, filling loop or Fernox TF1 System Filter - no need to drain down the system
• Treats up to 130 litres of system water (16 radiators) and the equivalent of 250m2 of underfloor systems.
• High performance, environmentally friendly -NSF, KIWA and Belgaqua approved formulation

Technical Specification
Brand Fernox
Unavailable offshore 1
Unavailable offshore
Manufacturer ID 62418
Safety Data Sheet click here
Type Inhibitor
Volume (L) 0.4
Volume (ml) 400
Container Type Liquid
Range Name F1
Delivery details

DELIVERY OPTIONS (UK mainland only)

Next Day Delivery – £5.00 or FREE for orders over £25

  • Order before 9pm Monday to Thursday for next business day delivery
  • Order Friday to Sunday before 5pm for Monday delivery
  • Orders placed after Sunday at 5pm will be delivered the following Tuesday
Pre-12pm Delivery – £10.00 to arrive before 12pm on the scheduled days above
Saturday Delivery – £10.00 or £5.00 for orders over £25 & FREE for orders over £75 (order by 6pm Friday)
Sunday delivery – £10.00 or £5.00 for orders over £25 & FREE for orders over £75 (order by 4pm Saturday)
Times may vary for items being delivered directly from the supplier. For more information, please visit our delivery information page below.
Items over 30kg can only be delivered from Monday to Friday. If ordered before 6pm, please allow up to two business days for delivery. Orders placed after 6pm Thursday will be delivered after the weekend.
More about Delivery
Click & Collect details

Collection Details

Our opening times are 7am-8pm Monday-Friday, 7am-6pm Saturday and 9-4pm Sunday. Please check your local store is open on the store locator page, before you visit.

Once you have placed your order online, we’ll have it ready for you at the store you have selected in as little as 5 minutes. We will hold your order for 14 days, after which we will automatically generate a refund to the payment type you used to place the order.

Don’t forget your mobile number – Make sure your mobile number is added so that we can text you when your order is ready to collect. Please wait for your text or email before coming to collect your items.

If an item is eligible for Next Business Day Collection in store, the order must be placed by 9pm Monday to Thursday for collection the next day. Orders placed after 9pm on Thursday, and up to 5pm on Sunday, will be available for collection on Monday. For larger items over 30kg, please allow two business days.

Fernox F1 Central Heating Inhibitor & Protector Express 400ml is rated 4.8 out of 5 by 115.
Rated 5 out of 5 by from Clever as eggs Really clever method of protecting your system, adding to the tank doesn't guarantee full circulation, this injects mid circulation. Clear and simple to use, YouTube videos useful too.
Date published: 2023-03-22
Rated 5 out of 5 by from Very easy to use. Vert easy to use, once you figure out all the attachments. Would use it again.
Date published: 2023-03-19
Rated 5 out of 5 by from Quick and easy Easy to use. Simply applied via filling loop. Presume its doing the job!
Date published: 2023-03-14
Rated 5 out of 5 by from Fennox Radiator Leak Seal Decided to try after I fiound 2 slow drip radiator leaks on fittings into Radiators. Filled in system and within 24 hours both leaks reduced and stopped by day 3. Removal of chinese takeawy tubs and towels and back to heating and no air ingress. Verry Happy
Date published: 2023-03-13
Date published: 2023-03-03
Rated 5 out of 5 by from Great stuff Easy to use and rapid service from Toolstation in Witney
Date published: 2023-02-22
Rated 4 out of 5 by from Central Heating essential item Keep your central heating running smoothly. Used with deionised water to reduce scale build up.
Date published: 2023-02-14
Rated 5 out of 5 by from Effective and easy to use This was very easy to use even though I had never put inhibitor in a central heating system before. Instructions were clear and the attachments provide many options for getting the stuff into your central heating system. I opted to go in via the bathroom towel rail and was amazed how quickly the whole can discharged into the system. Very slick and effective with no mess.
Date published: 2023-02-11
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