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Monument Cast Immersion Heater Spanner

( 10 Reviews )

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86mm A/F Malleable Casting Spanner fits Immersion Heater Nuts.

Redesigned with the help of the Monument Masters the 20186F has a double depth octagon which allow recessed / proud / thin immersion heater nuts to be accessed. The double octagon allows for smaller incremental turns over the standard octagonal Immersion Heater Spanner. Designed with excellent knuckle clearance.

Designed For the Trade, By the Trade and Made In Britain

  • Build Quality is rated at a 5/5 for Monument Cast Immersion Heater Spanner :

  • Ease of Use is rated at a 5/5 for Monument Cast Immersion Heater Spanner :

  • Features is rated at a 5/5 for Monument Cast Immersion Heater Spanner :

  • Value For Money is rated at a 5/5 for Monument Cast Immersion Heater Spanner :

  • Overall is rated at a 5/5 for Monument Cast Immersion Heater Spanner :

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Review for Monument Cast Immersion Heater Spanner by Johns Maintenance
26th August 2020

Very substantial casting, yellow to see easily, good quality. It fits on easy and well with the advantage of half turns for tight spaces, no other make does this. It is dearer but worth it.

Very substantial casting, yellow to see easily, good quality. It fits on easy and well with the advantage of half turns for tight spaces, no other make does this. It is dearer but worth it.


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Review for Monument Cast Immersion Heater Spanner by BODMIN PLUMBING SERVICES
14th August 2020

Rated at 5 stars for quality as it is robust, not worried to tap it with a hammer. Does what it is designed to do. If it is looked after properly then it should last a lifetime.

Rated at 5 stars for quality as it is robust, not worried to tap it with a hammer. Does what it is designed to do. If it is looked after properly then it should last a lifetime.


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Review for Monument Cast Immersion Heater Spanner by Pitts Heating And Plumbing Ltd
14th August 2020

Nice heavy spanner, good build quality. Bug handle lever against the nut. It has one job and does it well. Reasonable price, you can get cheaper but they often bend when used, you get what you pay for.

Nice heavy spanner, good build quality. Bug handle lever against the nut. It has one job and does it well. Reasonable price, you can get cheaper but they often bend when used, you get what you pay for.


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Review for Monument Cast Immersion Heater Spanner by K.norton plumbing & heating
14th August 2020

This product is solidly made and well engineered. Fit for purpose. Solid and professional. Single application tool, only useful for one job.

This product is solidly made and well engineered. Fit for purpose. Solid and professional. Single application tool, only useful for one job.


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Review for Monument Cast Immersion Heater Spanner by C H plumbing
30th January 2020

By far the best I've ever had, strong enough to get the hardest of immersions out. I started with the rothenberger but that wouldn't have anything else now

By far the best I've ever had, strong enough to get the hardest of immersions out. I started with the rothenberger but that wouldn't have anything else now


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Review for Monument Cast Immersion Heater Spanner by Stokes Heating and Plumbing
22nd January 2020

Having used and struggled with standard immersion heater spanner’s it was great to get the extra support and strength with the solid spanner

Having used and struggled with standard immersion heater spanner’s it was great to get the extra support and strength with the solid spanner


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Review for Monument Cast Immersion Heater Spanner by Mato plumbing and Heating
30th September 2019

This immersion is great fits tighter to element Lighter than previous versions but much better as use less effect to remove elements recommend to buy

This immersion is great fits tighter to element
Lighter than previous versions but much better as use less effect to remove elements recommend to buy


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Review for Monument Cast Immersion Heater Spanner by J W Heating and Plumbing Solutions Limited
30th September 2019

I’ve used a Monument immersion spanner for many years now and thought nothing would ever beat it for build and quality but I was wrong having tried the Monument Masters immersion spanner it clearly knocks the socks off my old black one, the best just got better Monument already had an amazing tool but that wasn’t good enough for them always striving to improve they never fail to impress, when you buy a new spanner #AskForMonument

I’ve used a Monument immersion spanner for many years now and thought nothing would ever beat it for build and quality but I was wrong having tried the Monument Masters immersion spanner it clearly knocks the socks off my old black one, the best just got better Monument already had an amazing tool but that wasn’t good enough for them always striving to improve they never fail to impress, when you buy a new spanner #AskForMonument


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Review for Monument Cast Immersion Heater Spanner by Surrey Plumbing Solutions Ltd
8th March 2019

Really impressed, great handle design, profile raised enough so can get it with a hammer if needed. Quality always as good as you would expect from monument. Colour bright enough it stands out in my toolbox or van. Very pleased with it.

Really impressed, great handle design, profile raised enough so can get it with a hammer if needed. Quality always as good as you would expect from monument. Colour bright enough it stands out in my toolbox or van. Very pleased with it.


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Review for Monument Cast Immersion Heater Spanner by BCU Plumbing
7th January 2019

Solid build, good price, love this since have switched over from box spanner, much easier to get more force on the bar on stubborn nuts. Hold up well to some hammering

Solid build, good price, love this since have switched over from box spanner, much easier to get more force on the bar on stubborn nuts. Hold up well to some hammering