The EGC5 egg-crate return grilles are designed to fit common commercial applications were the architect requires a return grille without bars on the face and with limited sight through the grille. The EGC5 offers 1/2”x1/2”x1/2” aluminum cube core and 1 1/4” flange. The EGC5 cube core design maximizes the free area making the EGC5 an excellent choice for applications requiring large amounts of air to be returned through the return grille minimizing the pressure drop and sound.