Fernox F1 Central Heating Inhibitor & Protector Express 400ml

By Fernox Product code: 45161 Pack size: Each

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Product Details

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

Technical Specification
Brand Fernox
Volume (L) 0.4
Delivery details

Covid-19 Update

  • Free Next Business Day delivery for orders over £25 to home and site is available for orders placed before 6pm
  • Saturday and Sunday delivery is now available for orders placed before 4pm on Friday for Saturday delivery and 4pm Saturday for Sunday delivery, see here for details
  • Pre-12 delivery service is now available. Place your order before 6pm Mon – Fri for next business day delivery by 12pm. Orders placed after 6pm Friday and before 6pm Sunday will be delivered by 12pm Monday. UK mainland
  • Once your order has been dispatched you will receive an invoice email with the courier details and your tracking number
  • Alternatively go to MyAccount, click on your Order History, click on the TRACK icon to link through to the carrier website and the tracking details for your delivery
  • Delivery direct from suppliers is now available and specific delivery times will be displayed on the product page
Order Value: Under £25 Over £25 but less than £75 £75 & Over
Next Business Day Delivery (Mon-Fri) usually before 6pm £5 Free Free
Pre-12 Delivery before 12 noon Next Business Day £10 £5 £5
Remote areas standard delivery (2-4 days) £5 Free Free
Saturday Delivery order by 4pm Friday £10 £5 Free
Sunday Delivery order by 4pm Saturday £10 £5 Free


Please note items delivered by our suppliers are not available for the options above. Delivery times may vary.

More about Delivery & Returns
Click & Collect details

Covid 19 Update

Click & Collect

  • Branches are now fully open and operating safely in line with government guidelines
  • Safe contactless collection is available 7 days a week at our branches
  • Our branches are open 7am-8pm Monday-Friday, 7am-7pm Saturday and 9-4pm Sunday
  • Keeping our colleagues and customers safe and well and respecting stringent social distancing requirements is our number one priority – 2 metre rule enforced
  • Our available product range will not require more than 1 person to lift
  • Please see our guide to click and collect below

  • Please ensure that your mobile number is added so that we can text you when your order is ready to collect

Call & Collect

Due to current trading conditions we have suspended our Call & Collect service until further notice.

If you are using our Click & Collect service please note the following:
  • Order online or over the phone and collect in branch from 5 minutes later.
  • Ensure you check stock is available for collection at your chosen branch.
  • Check branch opening hours to ensure you have sufficient time to collect.
  • For items not available for same day collection, place order before 7pm Mon-Fri (4pm Sun) and you can collect Next Business Day (Mon-Fri) after 3pm.
  • If we have your mobile number, we’ll send you a text when your order is ready to collect.
Reviews
Fernox F1 Central Heating Inhibitor & Protector Express 400ml is rated 4.9 out of 5 by 11.
Rated 4 out of 5 by from Yet to see the results Easy to apply the product into a part drained radiator! Have not run heating up a lot to fully appreciate any benefits yet.
Date published: 2020-06-30
Rated 5 out of 5 by from Easy to protect your heating system Blimey this is so, so easy and convenient to use. Having removed two radiators from the system to make decorating easier, I needed to treat the system on replacement to ensure it was protected. Radiators went back on, refilled, then using the expansion loop (it’s a sealed system) just connected the can pressed the button and job almost done, only needed to bring the system volume and pressure back and that was it.
Date published: 2020-06-22
Rated 5 out of 5 by from Saves your boiler and rads from rust easily Easy to use and a trusted name , just drain off at least a pint , enough to depressurise system and refil though radiator bleed. 5 min job .
Date published: 2020-05-18
Rated 5 out of 5 by from Refill central heating Product worked fine. I injected it into a drained radiator through the air bleed screw hole after changing a leaking radiator valve before I refilled the system. More useful info. on Fernox website
Date published: 2020-05-16
Rated 5 out of 5 by from Great Great product ease of use to put in heating system
Date published: 2020-04-24
Rated 5 out of 5 by from Boiler additive The best around for biolers
Date published: 2020-04-19
Rated 5 out of 5 by from Best local price Toolstation was the best price for this product although the item was out of stock locally so had to travel to next local town to collect.
Date published: 2020-03-13
Rated 5 out of 5 by from Worked fine Easy to install It took about 5 seconds to empty not the 20 on instructions. No issues just for info
Date published: 2020-03-08
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