Gravity grilles BAP have a special design with 1 row of grouped, free-moving blades, parallel to the 1^st dimension, the inclination of which depends on the pressure of the air flow and which achieve isolation of the air conditioning or ventilation system and protection against the ingress of rain, birds, insects, leaves, etc., during the interruption of its operation.

They are suitable for use in air conditioning and ventilation systems and for external installation on a wall or air duct to receive fresh air or to exhaust indoor air.

Gravity grilles ΒΑΡ can be made of anodized aluminium and aluminium painted in RAL color :

ΒΑΡ1 : Blades & frame made of anodized aluminium and aluminium painted in RAL color.

ΒΑΡ2 : Frame made of galvanized sheet metal & aluminium blades.

ΒΑΡ...PVC : Plastic blades, and frame made of anodized aluminium or painted in RAL color.