Adaptor Box For Return Air Grille | 380 x 510mm | Suits 300mm Ducting | XRAG425

Required to mount a 380mm x 510mm Return Air Grille in the ceiling or wall when connecting to insulated duct.
Has 6 adjustable clips that clamp onto the plaster sheets.
The Return Air Grille clips flush into the box.
To connect a Return Air Grille to a plaster wall without ducting use XRAG410 Mounting Frame.

Please allow 3-4 business days before this product is dispatched due to low demand.

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