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Calmag Magnetic Compression Scale Inhibitor 15mm

4.6 (21 reviews)
SKU: 260223155536921 EAN: 5060055230475

Compare 2 prices for Calmag Magnetic Compression Scale Inhibitor 15mm — from £20.99 to £33.76 across 2 UK sellers including Toolstation, Travis Perkins. Save up to £12.77 (38%).

£20.99 4h ago
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Compare Prices from 2 Sellers

Prices updated 19 Apr 2026
2
Travis Perkins
£33.76 +£12.77
15h
#2 Travis Perkins
15h ago
£33.76 +£12.77
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The Calmag 15mm scale inhibitor is a WRAS approved in-line magnetic scale inhibitor which is designed to inhibit the build-up of limescale on heating appliances. Giving whole house protection, the unit carries a lifetime guarantee on its manufactured parts and requires no on-going maintenance. The unit is the best-selling scale inhibitor in the UK with 15mm compression fittings. The pressure rating is 12 bar with the maximum temperature rating of 80 deg C and comes as a one-piece full metal chrome plated body for durability. Lifetime guarantee No maintenance One model suits all applications Whole house protection Speedfit fittings for rapid installation No chemicals Combination product Durable nickel plating Available as standard or space saving unit WRAS approved
No specifications available
No features listed
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Customer Reviews 21

4.6
21 reviews
5 star
15
4 star
4
3 star
1
2 star
1
1 star
0
Calmag limescale inhibitor
5.0
May 14, 2025
df013493-0f70-54c8-b590-4cc1937695b1 Verified Purchase

Great product, easy to install and requires little to no maintenance.

Diamond tile bit
4.0
May 10, 2025
Brownie2601 Verified Purchase

Does the job but more expensive models last for more cuts

Buy a better quality product
2.0
April 28, 2025
Bruevin Verified Purchase

Poor quality threads. Flexible hoses would not fit properly. Disappointing product.

compact
4.0
April 15, 2025
ad2d28b2-5763-58ac-9ffc-6b5ac0e30a1d Verified Purchase

A very compact product easy to fit as the mains was close to wall.

Inhabitor
3.0
March 20, 2025
Omez Verified Purchase

Was ok and easy to fit,my plumber recomened this product to me.

Excellent products ,prices and great customer service experience at tool station.
5.0
May 31, 2024
Adam J B Verified Purchase

Excellent product one of the best and most reliable products on the market.

Good
5.0
March 15, 2024
Dinki Verified Purchase

Nice item fitted well and lightweight would recommend

scale mag
5.0
March 4, 2024
Mr Rum Verified Purchase

very good at slowing down scale build easy to fit , fit to raising main just after stop cock or to a unit you want to control scale build up

Needed for warranty extension.
5.0
October 7, 2023
Gunmetal Verified Purchase

What can you say about a magnet? It's easy to fit and taking in account both ends are compression fittings, it is reasonably priced.

Scale inhibitor
5.0
September 16, 2023
Mick246 Verified Purchase

Great product and easy to fit .needed one quick just popped in had it in stock

Does the job
5.0
September 1, 2023
The Boiler Man Verified Purchase

Saves most utilities in a property gathering calcium build up and easy to fit.

Did the job ………….
4.0
August 16, 2023
Angel bright Verified Purchase

Did the job,cheaper online …………………../.././………………..

Nice product
5.0
May 19, 2023
Chrissy10 Verified Purchase

So fair so good. Sleek and easy to fit. Won’t know if it works just yet only time will tell

One of our better buys
5.0
December 3, 2022
Tadack Verified Purchase

Since installing the Calmag, ee have noticed the difference, from less soap required in the washing machine to less shampoo in the shower and less scale on the taps. Don't know how it works but it does

slim and easy to fit
5.0
November 15, 2022
Property Doctor Verified Purchase

Slim design, used a s replacement for another brand which was leaking. No idea whether they actually do anything or how long they last

4.0
October 20, 2022
kaashi Verified Purchase
Remedy for hard water
5.0
August 23, 2022
Robert Warren Verified Purchase

Looks the part, time will tell.

5.0
May 7, 2022
hcb8odc3tmv1fbd4zgta72e66 Verified Purchase
5.0
April 26, 2022
az8kvsfw2833htgtirq8j8d6q Verified Purchase
5.0
March 17, 2022
José c Verified Purchase
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