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Please note that we are experiencing a very high volume of orders. Lead times on products made to order are currently in the region of 8-12 working days. Off-the-shelf products are unaffected. We apologise for any inconvenience this may cause.

B 300mm

Ventilation Ducting  | Grille & Plenum Boxes | Rectangular & Bespoke Grille Boxes  | Side Entry Grille Boxes | A 300mm |  B 300mm



300mm x 300mm Side Entry Grille Box
GBSE300-300


Please use the drop down menus below to select the height and spigot size of the box required. There is also the option to include the 20mm flange at the bottom of the box (not required with diffuser style grilles).

What are suspension lugs?

If you need to fine tune the size please use the 'Other info' box.

Please allow 1-4 days on all grille boxes.





Spigot size


Include flange?
Yes No


Include suspension lugs?
Yes +£4.72
No +£0.00


Include 6mm Acoustic Lining
No +£0.00
Yes +£10.10




Any other info or specific requirement (optional):



Quantity:


300mm x 300mm Side Entry Grille Box

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