12" x 36" or 36" x 12" Cube Core Eggcrate Return Air Grille 2-Way + Product Details Size –

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

Rust-Free Aluminum - Made from strong

+ Product Description Our Clear Plastic Thermostat Guard is the ultimate solution for protecting your thermostat while ensuring universal compatibility

the actual front end outer dimensions are 7" in diameter

actual front end outer dimensions are approximately 14 5/8" width X 22 5/8" height

12" x 36" or 36" x 12" Cube Core Eggcrate Return Air Grille 2-Way + Product Details Size –+ Product Details Size 12" x 36" or 36" x 12" is the size for the duct opening measurement only, actual front end outer dimensions are approximately 13. 75" X 37. 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