8" x 8" Cube Core Eggcrate Return Air Grille Fixed Blades with Damper + Product Details Size –

+ Product Details Size – 24"w X 10"h is the size for the duct opening measurement only

ensuring that you find the perfect fit for your ventilation needs

This simple adjustment reduces HVAC strain

actual front end outer dimensions are approximately 9

+ Product Details Size - 25"w X 20"h is the size for the duct opening measurement only

8" x 8" Cube Core Eggcrate Return Air Grille Fixed Blades with Damper + Product Details Size –+ Product Details Size 8" x 8" is the size for the duct opening measurement only, actual front end outer dimensions are approximately 9. 75" X 9. 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 electric bills