Aluminium Flush Mounting Grille -

Flush Mounting Air Transfer Grille



  • Low cost air transfer grille
  • Restricted line of sight through the grille
  • Slimline design
  • Suitable for supply or extract purposes
  • Fire rated version complete with intumescent block available
  • Robust and durable - manufactured from 1.6mm Aluminium
  • Optional backing flange available for door mounting

Made to Order Item - Please allow five working days

Product Overview

Designed for general use in a myriad of ventilation applications, in particular rooms and doors where privacy must be maintained. The slimline design is ideal for mounting flush on doors or partitions where other types of transfer grilles may protrude into the opening - useful when incorporating intumescent blocks within fire rated doors. 

Flush mounting grilles have a blade arrangement designed to almost completely restrict the line of sight through the grille blades. This allows privacy to be maintained whilst still leaving enough free area to provide adequate ventilation. An optional backing flange is available to neaten the appearance when viewed from the rear.

Constructed entirely from extruded aluminium, FMG's are very robust yet light. The aluminium construction is desirable for applications such as bathrooms where repeated exposure to high humidity can be expected.

Suitable for low or high level mounting requirements.Fixings are via countersunk screw holes in the border. Free area approx 45%.

The smallest dimensions available are: 100mm x 100mm (W x H).

The largest dimensions available are: 2900mm x 2900mm (W x H).


The flush mounted grille is suitable for mounting in doors, walls or duct and is typically used for air transfer in:

  • Bathrooms
  • GP's Surgeries
  • Hospitals
  • Conference Rooms
  • Dentist Surgeries
  • Fire Doors (with intumescent block)
  • Plant Room Doors


Showing 1 - 10 of 10 results
150mm x 150mm (Opening Size) 207mm x 207mm (Overall Size) Flush Mounting Grille in Mill Finish
200mm x 200mm (Opening Size) 257mm x 257mm (Overall Size) Flush Mounting Grille in Mill Finish
250mm x 250mm (Opening Size) 307mm x 307mm (Overall Size) Flush Mounting Grille in Mill Finish
300mm x 300mm (Opening Size) 357mm x 357mm (Overall Size) Flush Mounting Grille in Mill Finish
350mm x 350mm (Opening Size) 407mm x 407mm (Overall Size) Flush Mounting Grille in Mill Finish
400mm x 400mm (Opening Size) 457mm x 457mm (Overall Size) Flush Mounting Grille in Mill Finish
450mm x 450mm Flush Mounting Grille Mill Finish
500mm x 500mm (Opening Size) 557mm x 557mm (Overall Size) Flush Mounting Grille in Mill Finish
550mm x 550mm (Opening Size) 607mm x 607mm (Overall Size) Flush Mounting Grille in Mill Finish
600mm x 600mm (Opening Size) 657mm x 657mm (Overall Size) Flush Mounting Grille in Mill Finish
All prices include VAT (where applicable)

CVFMG - Construction

Frames are held together using punched in steel corners.

Manufactured from extruded aluminium alloy sections. Frame 1.6mm thick, blades 1.6mm thick on 15mm centres.

CVFMG - Sizing

In order to calculate the exact overall face dimensions of the grille +57mm must be added to the nominal dimensions.

Nominal Dimensions = Opening Size

This is the number shown in the part codes e.g. CVFMG500

For example:

CVFMG500: The nominal opening size is 500mm x 500mm. The overall size including frame is 557mm x 557mm.

CVFMG - Finish

Standard: Standard finish for this product is Mill Aluminium.

Flush Mounting Grilles are also available in:

  • Polished Aluminium
  • Satin Anodised
  • BS/RAL powder coated colours - please call for pricing.

Mill Finish: Please note that 'mill finish' means untreated aluminium and is useful if you wish to provide your own finish. A 'mill finish grille' may naturally have light scrapes and abrasions from the manufacturing process. We can polish the scratches out if no finish is to be applied. This finish is referred to as "polished aluminium".

CVFMG - Accessories

  • Intumescent Air Transfer Block for use in fire doors or partitions.
  • Backing Flange for use in doors.

Download PDF Download Data Sheet