Overall size 16 x 8-1/8in. _x000D__x000D_
With 2 mounting screws hope spacing 15-1/4in. _x000D__x000D_
3 fins per inch. _x000D__x000D_
One-piece all-plastic construction one way vent. _x000D__x000D_
White finish provide a clean beautification to your floor.