Herring bone gate is designed to regulate air volume of louver or diffuser, an opposing flow and cl Herring bone gate is designed to regulate air volume of louver or diffuser, an opposingflow and close air volume regulating valve. The airflow volume to herringbone gate is quantificational and the speed is even.The vane can be open or close at different angle by turning the regulator, whichis equal to regulate air volume. Vanes are securely fixed within adjustable rangeand easy to regulate.Order Notice:1.Herring bone gate and air diffuser is usually matched set when ordered. If onlyone needed, please state it clear in teh order2.The dimension can be customer-mad

Herring Bone Gate