About product and suppliers:
            1,180 adjustable air vent products are offered for sale by suppliers on Alibaba.com, of which hvac systems & parts accounts for 3%. 

A wide variety of adjustable air vent options are available to you, such as ventilation. 

There are 1,035 suppliers who sells adjustable air vent on Alibaba.com, mainly located in Asia. The top countries of suppliers are China, Taiwan, China, from which the percentage of adjustable air vent supply is 99%, 1% respectively.