18" x 34" or 34" x 18" Cube Core Eggcrate Return Air Grille Material_Aluminum For a visual guide on

For a visual guide on how to measure your vent hole before ordering a grille

+ Product Details Size - 12"w X 14"h is the size for the duct opening measurement only

this thermostat guard is compatible with most standard thermostat models

Elevate your space's aesthetic with a luxurious touch that complements any architectural style

18" x 34" or 34" x 18" Cube Core Eggcrate Return Air Grille Material_Aluminum For a visual guide on+ Product Details Size 18" x 34" or 34" x 18" is the size for the duct opening measurement only, actual front end outer dimensions are approximately 19. 75" X 35. 75". High Quality High quality, rust free aluminum construction with smooth finished edges and counter sunk screw holes (screws included); no sharp edges.. Installation Location sidewall and ceiling. Design Cubic core eggcrate design Offers highest airflow efficiency at almost 95%, reducing