18" x 18" Cube Core Eggcrate Return Air Grille w20h20 but you will appreciate the

but you will appreciate the benefits over the period of time

5" width x 13

+ Product Details Size – 4"w X 14"h is the size for the duct opening measurement only

These grilles and registers give you an extra measure of quality that are visible to your family members and house guests

We carry sizes the big box stores don't

18" x 18" Cube Core Eggcrate Return Air Grille w20h20 but you will appreciate the+ 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