6" x 34" or 34" x 6" Cube Core Eggcrate Return Air Grille w10h10 this guard is designed to

this guard is designed to provide maximum protection against tampering while maintaining a clean and professional appearance

+ Product Details Size – 20"w X 12"h is the size for the duct opening measurement only

+ Product Details Size - 30"w X 26"h is the size for the duct opening measurement only

this HVAC vent duct cover ensures durability and reliability

6" x 34" or 34" x 6" Cube Core Eggcrate Return Air Grille w10h10 this guard is designed to+ Product Details Size 6" x 34" or 34" x 6" is the size for the duct opening measurement only, actual front end outer dimensions are approximately 7. 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