dual function mud-in preburied gypsum ceiling air grille, preburied linear diffuser for HVAC air distribution, adjustable airflow invisible slot diffuser for central AC, low maintenance contemporary ceiling ventilation grille, pre-embedded supply & return

Customizable length & multi-slot options, single slot / double slot available to meet different air volume requirements

Frameless plaster-in recessed design, fully hidden after drywall plastering, fit modern interior aesthetic standards

High-tough ABS plastic body, lightweight yet sturdy, easy to transport and handle on construction sites

Adjustable air vanes to regulate airflow direction, suitable for both air supply and return air applications

Wide application range: apartment, villa, office, hotel, retail store and other commercial & residential buildings

Support OEM custom specifications, can be produced according to construction drawings for large HVAC projects