Feature:
Materials: aluminium alloy 
Egg ctare core is made of aluminum strips(0.4mm thickness) assembled to form equally distributed and sized square cells,which can be opened like a door,easy for cleanliness. .
Excellent appearance, long space of airflow, used as return air of ceiling and side wall
OBD or fliter can be installed as you need
Natural anodized aluminum finish or powder coated

Functions: for air supply and return; for sidewall or ceiling

Use: Either ceiling mounted or sidewall mounted air terminal devices used as exhaust/return air grilles for domestic and industrial applications