Brittany P. July 11, 2018 16:26 Updated If your circular vent has horizontal or vertical air slots, it should work just fine. It grips tight and can be rotated in any direction. Please make sure to test with and without your smartphone before using! Related articles Can I use my CD Player while using a CD Slot Mount? Does the Easy One Touch 4 on vertical vents? The tightening nut/ screw has broke on my mount. What do I do? How to install and add the bracket to any iOttie CD Slot Mount. Does the phone block AC Flow when using an air vent mount? Comments 0 comments Article is closed for comments.