When installing Envisivent's larger-sized air return vents on the ceiling, for an added degree of safety, these clips can be easily affixed to the vent cover.  

Simply slide the clip through the top and bottom slot on each corner of the vent cover insert then slide the clip towards the outer edge of the insert. 

The clips come primed and can be easily painted to match the colour of your vent cover insert and the surrounding wall. 

There are 4 individual clips in a set. 

Ideally paired with: CB5004, CB5009, and CB5064