Outer standard Size: As per your request(Face size=Neck size+150mm/127mm/150mm/295mm)
Neck size: A*B(size is as per your request)

Feature of Ceiling Air Diffuser:
1.Teakwood material ( stainless steel, galvanized sheet or aluminum alloy is available )
2.The vane is 30 or 45 degree.
3.Can add OBD or adaptor as your requirement.
4.Easy installation and maintenance.
5.Versatile supply air diffuser for constant or variable air volume heating, cooling, or ventilating;
Swiftly balancing the temperature of airflow and slowing the velocity of airflow avoid dust wind.
Functions: Mutil-angle for air supply or return.
Use: For ceiling, sidewall, door application, in hotel, office, theater, guest room etc.
Packing:
Standard export cartons and normal packing (each diffuser packed with a piece of wrapper, and then put into the carton separated with a cardboard)
Remark:
Dimensions, colors, finishes, designs and other specifications can be customized according to customers'  requirement.