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  1. Heating, Air Conditioning, Electricity
  2. Heat pump, Ventilation, Air conditioner
  3. Extruded aluminum ventilation grill
  4. RENSON
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Extruded aluminum ventilation grill 311/2
rectangularfor indoor usecommercial

Extruded aluminum ventilation grill - 311/2 - RENSON - rectangular / for indoor use / commercial
Extruded aluminum ventilation grill - 311/2 - RENSON - rectangular / for indoor use / commercial
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Go to the RENSON website for more information

Characteristics

Material
extruded aluminum
Shape
rectangular
Interior/exterior use
for indoor use
Market
commercial, home
Other characteristics
for air supply and exhaust, heating, cover, acoustic
Width

Min.: 85 mm
(3 in)

Max.: 1,215 mm
(48 in)

Length

Min.: 85 mm
(3 in)

Max.: 3,500 mm
(138 in)

Thickness

Min.: 25 mm
(1 in)

Max.: 25 mm
(1 in)

Description

Product description
Model 311/2 is an aesthetic floor/cover grille with a Z-frame and stop equipped with an integrated noise-damping rubber strip. Blades run in the transverse (width) direction. Floor anchors are included. Suitable for installation over floor heating systems; lightweight construction simplifies handling and fitting while ensuring effective heat transfer.

Product advantages
  • Lightweight construction for easy handling and installation
  • Noise-damping rubber strip on the frame stop
  • Transverse blades for discreet airflow
  • Compatible with floor heating systems

Downloads (available on the product page)
  • B2B brochures
  • DWG files (archive)
  • Specification text (DOC)
  • Technical sheet (PDF)
  • Colour guide 2026 (PDF)

Technical specifications
  • Physical Free Passage (%): 76
  • Slat step (mm): 16.5
  • Standard mesh type: -
  • IP class: -
  • Depth to fit (mm): 23
  • Total louvre depth (mm): 25
  • K-factor (entry): -
  • CE coefficient: -
  • K-factor (discharge): -
  • CD coefficient: -
  • Water resistance at 0 m/s (%): -
  • Water resistance at 0.5 m/s (%): -
  • Water resistance at 1.0 m/s (%): -
  • Water resistance at 1.5 m/s (%): -
  • Water resistance at 2.0 m/s (%): -
  • Water resistance at 2.5 m/s (%): -
  • Water resistance at 3.0 m/s (%): -
  • Water resistance at 3.5 m/s (%): -

Catalogs

Louvres
Louvres
176 Pages

Exhibitions

Meet this supplier at the following exhibition(s):

Batimat 2026
Batimat 2026

28 Sep - 01 Oct 2026 Paris (France) Hall H4 - Stand D056

Go to the RENSON website for more information

Other RENSON products

Louvres

*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.