Frequently asked questions about the Ventilation grids and plafonds category
What are Ventilation grids and plafonds and what are they used for?
Ventilation grids and plafonds are decorative and functional components of a ventilation system designed to direct and protect supply and extract airflows. They come in metal and plastic versions, sizes from D100 to 400×150 mm, and adjustable models such as MR2020R and MR1515R.
What sizes do the grids come in and how do I pick the correct diameter?
Available sizes include round D100, D125, D160, D200 and rectangular 140×105, 140×190, 200×200, 260×280 and 400×150 mm. Match the grille to your duct’s inner diameter or opening dimensions — e.g. MR125i fits a D125 duct.
What is the difference between metal and plastic ventilation grids?
Metal grids (MR2020R, MR1419M, etc.) are more durable and often adjustable, suited for higher-load areas. Plastic grids (VR1515M, VR100M) are lightweight and corrosion-resistant, good for moist environments but less robust than metal.
Which models are suitable for outdoor use?
Outdoor models include GRILLE EXTERNAL MRA 125 and REST VÄLIS MRA 125, which are cast and designed for exterior installation. Always confirm the grille has a weather-resistant finish.
Which grilles are adjustable and how do adjustments work?
Adjustable products include MR2020R and REGUL models (300×150, 400×150 mm) featuring movable louvers or a damper to limit airflow. Adjustment is typically via a screw or sliding lever on the grille frame.
Are these grilles suitable for bathroom extractor fans?
Yes: plastic VR100M/VR125 and stainless models MR100i/MR125i are suitable for moist rooms. Choose by duct diameter (D100, D125); stainless steel is preferable for persistent humidity.
What decorative options are available — colours and finishes?
Finishes include anthracite (MR1419A), copper/antique (MR1419CU, MR14105CU), white and black (MR1419M, VR100M), plus galvanized and cast external grilles. Choose a finish to match your interior and duct material.
How do I know if MR2628CU fits my 260×280 mm duct?
MR2628CU is sized for 260×280 mm rectangular ducts. Measure your duct’s internal opening and if it matches 260×280 mm the grille will fit.
Which models are recommended for a kitchen extractor?
Adjustable metal grilles such as MET. 300×150 mm or D125/D160 sizes suit more powerful kitchen extractors. Metal models (MR1419M, MR160i) handle grease and heat better.
What are the dimensions of MR1515R 150×150 mm and is it available in white?
MR1515R is a metal adjustable grille sized 150×150 mm and the REGUL.white MR1515R indicates a white finish is available. Confirm your 150×150 mm mounting opening before purchase.