18" x 18" Cube Core Eggcrate Return Air Grille w8h8 How to Measure Your Vent

How to Measure Your Vent Hole Before Ordering a Grille

but you will appreciate the benefits over the period of time

you have 16 different varieties to choose from

and the second number represents the height

Design – Rigid gauge built for durability and long life in mind

18" x 18" Cube Core Eggcrate Return Air Grille w8h8 How to Measure Your Vent+ Product Details Size 18"w X 18"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 19. 75" width X 19. 75" height. High Quality High quality rust free, strong aluminum construction with smooth finished edges for easy and safe use; Filter Grille features a user friendly plastic latch that requires no screwdriver for opening. Installation Location sidewall and ceiling. Design Cubic core eggcrate