These 102mm outer diameter universal air vents feature 2 adjustable louvres to allow varying airflow or they can shut the vent off completely. The vents are designed to fit into a panel and are attached via snap clips.Provides adjustable airflowUniversal fittingSturdy constructionThese air vets are available in a range of options:Option 1 - 102mm outer diameter. Fits into a 76mm diameter hole. Not rotationalOption 2 - 102mm outer diameter. Fits into a 76mm diameter hole. Rotates to direct airflow.Option 3 - 102mm outer diameter. Fits into a 76mm diameter hole. Rotates to direct airflow. Includes a flange to attach a 70mm ID duct hose.Separate adaptors are available to allow fitment of a 45mm ID ducting hose to option 2 CLICK HERE.