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Product Details

3 in 1 system protector. Dissolves contaminants to a minute size and floats in the system. Provides long term protection. Easy to use and add when cleaning is not appropriate.

Technical Specification
Brand Calmag
Safety Data Sheet click here
Safety Data Sheet click here
Delivery details
Order value: Under £10 £10 & over
Express usually Next Business Day before 6pm £5 Free
Turbo usually Next Business Day before 12 noon £10 £5
Remote areas standard delivery (2-4 days) £5 Free
Order Value: Under £25 Over £25 but less than £75 £75 & Over
£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
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 8pm Mon-Sat (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
Central Heating Cleanser / Descaler & Inhibitor is rated 4.8 out of 5 by 43.
Rated 5 out of 5 by from Highly recommended by engineers. Does what it says on the bottle.
Date published: 2019-10-15
Rated 5 out of 5 by from Easily improve your central heating system This product was easy to use and a simple way of improving my central heating system at a very cost effective price. This additive was recommended by my plumber as the cheapest way of getting the best from and prolonging the life of my heating system.....it has now been added and I await the results over the winter.
Date published: 2019-09-18
Rated 5 out of 5 by from heating cleanser Really done what it says on the tin and could see it did do it water from bottom of system clear as a bell
Date published: 2019-08-01
Rated 5 out of 5 by from heating cleanser Really done what it says on the tin and could see it did do it water from bottom of system clear as a bell
Date published: 2019-08-01
Rated 5 out of 5 by from Great!! Bought after taking advice from my boiler service engineer... very quick delivery, very pleased overall.
Date published: 2019-07-09
Rated 5 out of 5 by from Easy to add to hearing system Added this after fitting replacement pump and seems to have lessened system noises down , , no kettling now .,and pump runs on half speed now.
Date published: 2019-04-09
Rated 5 out of 5 by from Central Heating Cleanser / Descaler & Inhibitor used this product after flushing out system after fitting new radiator .
Date published: 2019-03-27
Rated 5 out of 5 by from So far, so good! My central heating is 30+ years old. It recently developed a faint noise, always worthy of investigation. The header tank had a slime/sludge surface and the water was disgustingly black, despite having the whole system drained down and refilled, with an inhibitor, less than 2 years ago. I drained down the system again and cleaned the header tank. Refilled the system and added 1 litre of Calmag 3 in 1. All very straightforward. Noise immediately gone. Can't speak for its longer term value but no reason to doubt it.
Date published: 2019-03-10
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