Rated 4 out of 5Â by odDIYer good product
This spanner undid a very tight immersion element without problem, the only weakness being the user.
Rated 5 out of 5Â by Welldeveloped Immersion heater box key
Simple but very effective. Â£9 for the box key against possible Â£500+ plumbers bill if old tank got damaged using stilsions or cheap plate key.
Rated 4 out of 5Â by AlexanderB Functional
Bought to replace a cranked spanner which didn't fit an immersion unit.
This one does what it's meant to do.
Rated 4 out of 5Â by Tinram Box Immersion Spanner
I try this box spanner after buying Ring spanner to remove Heater.
Has they was no room to turn Ring spanner and was
bend the top of tank
the box spanner was larger than the ring spanner by 1mm and slip round heater nut till filling gap with 2p coin one of the flats work great after that