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Product Details

• One application system inhibitor for sealed systems
• Easy to add directly via a radiator or filling loop
• Includes all adaptors

Technical Specification
Brand Calmag
Manufacture ID SI-CALSHOT
Safety Data Sheet click here
Safety Data Sheet click here
Volume (L) 0.3
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 9pm 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.
Cal-Shot Total System Protection 300ml is rated 3.9 out of 5 by 7.
Rated 5 out of 5 by from Easy Peasy Absolute doddle to use with no spills
Date published: 2019-12-14
Rated 1 out of 5 by from Useless product This product is about as useful as a chocolate teapot, in-fact at least a chocolate teapot would taste nice! used provided attachment to attach to the radiator and like other reviews stated the inhibitor just leaked out onto the floor! Would have taken this back but the liquid all spilled out on my floor!
Date published: 2019-02-06
Rated 3 out of 5 by from Not that great using filling loop. I bought this last week and it leaked when trying to introduce it through the Filling Loop. I drained and flushed the system first and then followed the instructions carefully. It leaked when squeezing the bottle gently. I checked that everything was tightened and started to squeeze the bottle again but still it leaked. I must have lost half a bottle of the stuff on the floor. I ended up adding it through one of my radiators using a funnel.
Date published: 2018-02-23
Rated 5 out of 5 by from Just what I was looking for Have bought this to add to my system after I have drained the system
Date published: 2018-02-14
Rated 5 out of 5 by from central heating inhibitor bought this to top up system after rad exchange, i believe fernox was in the system no compatability issues
Date published: 2017-02-21
Rated 4 out of 5 by from Simple system protection The logical solution to in radiator system additives
Date published: 2017-01-27
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