14" x 18" or 18" x 14" Cube Core Eggcrate Return Air Grille w26h26 this model allows for mounting

this model allows for mounting without removing the thermostat

Installation Location – Ceiling

actual front end outer dimensions are approximately 16 5/8" width X 38 5/8" height

+ Product Details Size - 22"w X 16"h is the size for the duct opening measurement only

14" x 18" or 18" x 14" Cube Core Eggcrate Return Air Grille w26h26 this model allows for mounting+ Product Details Size 14" x 18" or 18" x 14" is the size for the duct opening measurement only, actual front end outer dimensions are approximately 15. 75" X 19. 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