G1 exhaust grilles have 1 row of independent, manually adjustable blades parallel to the 1^st dimension. They are suitable for use in air conditioning and ventilation systems and for mounting on a wall, ceiling or air duct to extract indoor air.

G1 grilles can be made of anodized aluminium, aluminium painted in RAL color, galvanized or stainless steel and copper :

G1... : Blades & frame in anodized aluminium or aluminium painted in RAL color.

G1... | C : Copper blades & frame.

G1... | GL : Galvanized sheet blades & frame.

G1... | I : Stainless steel blades & frame.