C20 is a rectangular aluminium grille with adjustable horizontal bars. C21 is also equipped with vertical directional bars for regulation of dispersal patterns. C20/C21 are used for supply air and are supplied as standard with springs for installation in plenum boxes type VBA, WB or mounting frame type GGR. C20/C21 can also be used with volume regulator GAT.


The grille should be removed to gain access to the plenum box or duct. The external parts should be wiped with a damp cloth.


Plenum box:VBA, WB

Mounting frame:GGR

Volume regulator:GAT

There are no softwares available for download for this particular product.