|These ball and socket air vents are injection molded T grade ABS. The vent orifice is 1" diameter, and the ball swivels 45°. The mounting flange is 2-1/8" square, and the distance between mounting hold centers is 1- 11/16". Mounts in 1.75" diameter hole & uses 1-3/4" ducting.|
Good Quality with adjustable airflow
A 10/32 type screw can be used to mount the Plastic Eyeball Air vent.
No, these vents do not twist. There is a small plastic handle inside the vent that that you use to pull back to open and push forward to close.
No, the vent does not completely shut off. When the vent is closed, there will be a small amount of air flow still coming through as it is not an airtight seal.
It takes a 1.75" hose.