Air vent identification, Do you know what these are?
I am trying to find out what these air vents things are called and trying to find out where to buy them. They are out of a demo hive that G3 let me borrow, but I can not find them anywhere and if I new the name of them it would probably help out.
These are around 1 inch in diameter.
This is the only time I have ever seen these things and I have searched google for 1" air vents but have been unsuccessful.