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BOX GRILL TYPE SLOT - DESIGN
![[text], in MoldovaBOX GRILL TYPE SLOT - DESIGN, in Moldova[text], in Moldova](https://thermo.md/images/thumbnails/1372/1200/detailed/2/20400096_provent-vpndg-1000_75x4_3.png "[text], in MoldovaBOX GRILL TYPE SLOT - DESIGN, in Moldova [text], in Moldova")
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![[text], in MoldovaBOX GRILL TYPE SLOT - DESIGN, in Moldova[text], in Moldova](https://thermo.md/images/thumbnails/50/50/detailed/2/20400096_provent-vpndg-1000_75x4_3.png "[text], in MoldovaBOX GRILL TYPE SLOT - DESIGN, in Moldova [text], in Moldova")
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![[text], in MoldovaBOX GRILL TYPE SLOT - DESIGN, in Moldova[text], in Moldova](https://thermo.md/images/thumbnails/50/50/detailed/2/kgfleemx265851mst05bmdbg87bomqbl_qwye-ys.png "[text], in MoldovaBOX GRILL TYPE SLOT - DESIGN, in Moldova [text], in Moldova")
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![[text], in MoldovaBOX GRILL TYPE SLOT - DESIGN, in Moldova[text], in Moldova](https://thermo.md/images/thumbnails/40/40/detailed/2/20400097_provent-vpndg-1500_75x6_3.png "[text], in MoldovaBOX GRILL TYPE SLOT - DESIGN, in Moldova [text], in Moldova")
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This slot ventilation grille is designed for installation in plasterboard ceilings and can be used as a supply and exhaust diffuser in a ventilation system using flexible 75 mm diameter ventilation ducts. It can be installed in both single-layer and double-layer plasterboard ceilings. A static pressure chamber (SPC) is integrated into the housing to reduce airflow velocity and noise. The diffuser's rectangular slot accommodates 75 mm flexible air ducts.