ABS 600x600 Ceiling Diffuser - Integrated Supply Return Linear Vent | HUAQI

600×600 ABS linear louver air grille (Model 600-XT) for integrated ceiling, compatible with 600 aluminum buckle panel, mineral fiber board and gypsum board. Thick virgin ABS one-step injection molding, smooth surface, moisture-resistant, eco-friendly, odorless, anti-condensation and long-term non-yellowing. Multiple versions available: standard plain grille, hinge maintenance type, built-in nylon filter mesh type. Uniform inner neck dimension 550*550mm, can match supporting square-to-round reducer to connect flexible ventilation duct. Wide clip-on outer flange enables direct snap installation on ceiling triangular keel, widely used as HVAC air inlet, return air and exhaust vent for office, commercial and residential ceiling ventilation systems.