Ideal for boiler-rooms, coolers, etc. that are located below ground level. Complete with an edge protection grate and fasteners.
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In the case of ventilation housing there are unlimited possibilities in the assembly of one element on top of another through the perfected system of level-raisers that are very useful in the case of low basements and allow variable regulation up to ground level. The stepless regulation our level-raisers do not require labor-intensive cutting. The fitting and assembly are place by moving the light well and bolting it at the appropriate height to the wall.
