75 mm disc valve (white), adjustable ABS ventilation cover for ceiling or wall mounting, round ventilation grille for exhaust fans, duct fan

Stackable Design: The center of the air outlet is adjustable; the airflow can be adjusted by turning it. Removable Unit: The white vent cover is removable for easy cleaning. High-Quality Material: Made of high-quality ABS plastic, the vent is compact and sturdy. Easy Installation: Slide the vent cover into the pre-opened opening using the return mechanism and turn it slightly to secure it. Connect the pipes and secure them with hose clamps. Versatile Application: The disc valve can be installed both indoors as an air intake and outdoors as an air outlet. It is compatible with 75 mm diameter drain pipes and can be mounted on walls and ceilings.