Eggcrate Grille – ECG

Eggcrate grilles (ECG) are suitable for extract air in either sidewall or ceiling applications where a high percentage free area is required.

The aluminium eggcrate core is 12mm x 12mm with a standard flange configuration of 32mm.

Available options are Opposed Blade Damper (OB), Removable Core (RC) and Core Only (CO), and Filter Frame.

Full specification for ordering available in product data sheet below.

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Alternate codes

Series GE, Type AE, GC5, EC, HREC

We are currently in the process of reviewing our product range. Please check with the Sales Office for all technical details.

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Product Description

The RCM range of Eggcrate Grilles (ECG) are particularly suitable for either sidewall or ceiling applications. They have been engineered for installation where a high percentage of free area is required.

The Egg Crate grille frame is manufactured from extruded aluminium sections with mitred corners, all of which have been fully welded and linished. A range of grille sizes are available to fit duct sizes from 100mm x 100mm up to a maximum of 1200mm x 1200mm as a single unit.

The Eggcrate grille core consists of 12mm x 12mm sections and is produced with a standard flange configuration of 32mm. It is also available in a range of options including: an Opposed Blade Damper (OB), a Removable Core (RC), Core Only (CO) and Filter Frame.

Finishes include:

(Mill Finish)
RAL9006 (Silver/Grey)
RAL9010 (White)
RAL9005 (Black)
RAL9003 (White)
RAL9016 (White)
Other RAL/BS Code (additional costs may apply)
Chrome Finish – Powder Coated

We can also manufacture our Eggcrate Grilles from various grades of Stainless Steel to meet your specific application requirements. Please contact us for more information using the enquiry option below.

As a manufacturer of ventilation products, we offer a bespoke design service to construct ventilation products to your exact project requirements. Learn more about our Bespoke Ventilation Service here.


Plenum boxes are accessories for use with Grilles and Diffusers. They are designed to equalise the pressure profile within the box and hence provide an even velocity at the face of the Grille or Diffuser without the use of Equalising Grids.