14" x 26" or 26" x 14" Cube Core Eggcrate Return Air Grille Compatible With Duct 10in + Product Details Size –

+ Product Details Size – 30"w X 14"h is the size for the duct opening measurement only

Filter Size - 11

14" Circular Round Aluminum HVAC Supply Grille Air Diffuser - With Butterfly Damper - Vent Duct Cover

actual front end outer dimensions are approximately 12 5/8" width X 12 5/8" height

14" x 26" or 26" x 14" Cube Core Eggcrate Return Air Grille Compatible With Duct 10in + 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