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Monument Tools

Box Immersion Spanner

Product Code: 29549

3 3/8" (86mm) A/F. Immersion heater spanner with separate tommy bar. Without slot to ensure removal of immersion heater flex and to reduce the possibility of electric shock.

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Box Immersion Spanner Instruction Manual



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Rated 3 out of 5 by Too big.Can puncture cylinder. I found this spanner slightly too big for the immersion heater nut and unless you're very careful it will drop completely over the nut and dig into the copper cylinder while turning it. Had to go back to my flat immersion spanner which easily undone the immersion and was far more controllable. 13 Nov 2015
Rated 3 out of 5 by Stronger Bar Required Box spanner fitted well however bar bent when tapped with hammer on a very tight element. unfortunately unable to remove even when adding on extra leverage, the bar bending further didn't help 10 Oct 2015
Rated 5 out of 5 by Quality Tool Although this is slightly more expensive than the flat ring spanner I would thoroughly recommend this. It feels like it will last a few generations. It undid my old immersion heater with ease. I managed to thread the mains lead through the socket and still undo it so no need to remove the cabling first - once unplugged! This is twice the price for 10 times the quality. 5 Oct 2015
Rated 5 out of 5 by good tool used this the other day struggled to get the old heater out due to it being puttied up!! but this spanner worked well 24 Jul 2015
  • 2015-11-26 T09:54:35.025-06:00
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Brand Monument Tools
Model No SFX358J
Pack Size 1
Total Product Weight 0.705 kg