Stainless Steel Adjustable Disk Air Diffuser, Round Ceiling Air Vent For HVAC Fresh Air System | Huaqi

This adjustable disk‑type air diffuser is made of durable stainless steel, specially designed for ceiling ventilation of HVAC and fresh‑air systems. The central disc cover can be manually adjusted by screw structure to change airflow volume, realizing flexible air supply. Smooth polished metal surface brings anti‑rust and long‑service‑life performance. Compact round structure fits neatly into ceiling installation. Multiple sizes are available to match different ventilation ducts. Widely used in offices, hotels, hospitals, schools and commercial buildings for air supply and circulation.