The key for adjusting small heights is used to change the height of the pedestal on a finished terrace by adjusting it 'from above'. The use of the key allows for the adjustment of small heights of the pedestal without the need to dismantle the tiles. It can be used for terraces built on the MAX series with a self-leveling head.
The key fits in the 3 mm gaps between the tiles. It allows for leveling out any unevenness and elevations of tiles caused by a slight difference in the height of the pedestals.
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