A 600x600mm fixed-core egg crate return air grille with a permanently fixed square-cell core. Designed for ceiling return air openings in residential and commercial ducted HVAC systems. The fixed core provides a rigid, secure face that resists deflection and maintains a consistent appearance over time.
Fixed Core Egg Crate Grilles
600 x 600 Eggcrate Grille (Face 638 x 638)
600 x 600 Eggcrate Grille (Face 638 x 638)
