The opposed blade damper DGA can be fitted to the AD, AL, AR and AC aluminium grilles. It can also be fitted to the WLA-11 weather louvre aluminium grille .
The opposed blade damper is held in place by special patented clips, designed both for fixing the damper to the grille and for fitting it on a mounting frame or a plenum PBA.
The DGA dampers are made entirely of galvanized steel and have mechanism for opening and closing all the damper blades simultaneously (by using a screwdriver).

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