6" x 36" or 36" x 6" Cube Core Eggcrate Return Air Grille 14" Round Duct Pipe + Product Details Size -

+ Product Details Size - 24"w X 16"h is the size for the duct opening measurement only

+ Product Details Size - 14"w X 6"h is the size for the duct opening measurement only

Carefully Shrink Wrapped – With cardboard backing to prevent damage in shipment

Design – Rigid gauge ABS plastic

+ Product Details Size – 24" x 24" with 8" collar T-Bar drop ceiling perforated return grill - metal back casing

6" x 36" or 36" x 6" Cube Core Eggcrate Return Air Grille 14" Round Duct Pipe + Product Details Size -+ Product Details Size 6" x 36" or 36" x 6" is the size for the duct opening measurement only, actual front end outer dimensions are approximately 7. 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