14" x 26" or 26" x 14" Cube Core Eggcrate Return Air Grille Insulated Line Set + Product Details Size -

+ Product Details Size - 12"w X 22"h is the size for the duct opening measurement only

actual front end outer dimensions are approximately 14 5/8" width X 34 5/8" height

Installation – Easy to Install

actual front end outer dimensions are approximately 32 5/8" width X 26 5/8" height -

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14" x 26" or 26" x 14" Cube Core Eggcrate Return Air Grille Insulated Line Set + Product Details Size -+ Product Details Size 14" x 26" or 26" x 14" is the size for the duct opening measurement only, actual front end outer dimensions are approximately 15. 75" X 27. 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