Grilles made of polystyrene or ABS can be mounted on the outside or inside.
Made of polystyrene, PM adjustable vents consist of a type P bar grille (white color) and a frame to be sealed serving as a support for 2 mobile shutters ensuring the closure of the air passage.
A control button located on the lower part of the grille allows the air passage to be partially or completely closed.
The installation is done vertically or horizontally on a vertical wall.
The frame is sealed in the masonry
(reservation H x 100 mm).
The grille fits into the frame, held by 2 clips.



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