8" x 30" or 30" x 8" Cube Core Eggcrate Return Air Grille 18in diameter + Product Details Size -

+ Product Details Size - 20"w X 4"h is the size for the duct opening measurement only

High Quality Copper Coil Meets/Beats ASTM B280 Standard for Air Conditioning and Refrigeration (Made From C12200 - 99

Looks Like It Was Just Waxed

75" width X 9

Pre-flared ends with nuts are for simple and easy installation

8" x 30" or 30" x 8" Cube Core Eggcrate Return Air Grille 18in diameter + Product Details Size -+ Product Details Size 8" x 30" or 30" x 8" is the size for the duct opening measurement only, actual front end outer dimensions are approximately 9. 75" X 31. 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