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Plastic Ventilation Grilles with Backdraft Damper Duo Smart

Production » Ventilation » Ventilation grilles
code: vrrdd135165
manufacturer: Dospel
In stock, 20+ cnt.
€588Without VAT 4.86 €
Choose a size
  • Shape
    Rectangular (square)
  • Colour
    White
  • Material
    Plastic
  • Airflow direction
    Exhaust
  • Product type
    Grille
  • Installation location
    Indoor (wall and ceiling)
  • Louver type
    With non-return valve
Price includes VAT 21%.
The indicated price is valid ordering till 13.09.2026.

Plastic Ventilation Grilles with Backdraft Damper Duo Smart

Series Overview

The Duo Smart series plastic ventilation grilles are designed for supply and exhaust ventilation systems in residential and commercial premises. The built-in backdraft damper automatically blocks reverse airflow when the ventilation is off, preventing odours, cold air and airborne particles from entering through the duct. The square chamfered frame and horizontal louvres give the grille a clean, modern look that blends into any interior.

Key Features

  • Material: High-quality ABS plastic — durable, moisture-resistant, and resistant to household detergents and UV radiation.
  • Backdraft damper: Built-in damper closes automatically when there is no airflow — protection against back draught, odours and cold air without any additional equipment.
  • Horizontal louvres: Fixed louvres ensure even airflow distribution and conceal the duct from direct view.
  • Colour: White (RAL 9010).
  • Installation: Spigot inserts into the wall or duct opening; the face panel is secured to the surface.
  • Application: Bathrooms, kitchens, bedrooms — for exhaust ventilation with intermittently operating fans.

Available Sizes

Duo Smart grille size range
Model Duo Smart 165×165 Duo Smart 135×135 Ø100 Duo Smart 135×135 Ø125
Panel size A×B (mm) 202×202 174×174 174×174
Depth C (mm) 161 132 132
Spigot depth D (mm) 17 17 17
Spigot diameter (mm) Ø150 Ø100 Ø125

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