The MFA mounting frame used for supply and extract aluminium grilles is a strong frame on which the visible grille frame can be held in place by fixing clips. Having installed the grille, the MFA mounting frame will not be visible.
The MFA mounting frame facilitates the frequent need to remove the grille for cleaning, inspection or filter changing. Giving easy access to the inner parts and duct without the use of screws or tools.
To ensure enough space for the MFA mounting frame, the cutt-out dimensions must be 5 mm larger than the nominal size (L x H) of the grille.

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