34" x 34" Cube Core Eggcrate Return Air Grille 18" Round Duct Pipe Versatile Compatibility: Our ceiling grills

Versatile Compatibility: Our ceiling grills aren't limited to just T bar drop ceilings

Pressure Rating: 2100 to 7000 PSI

+ Product Details Size – 14" x 24" or 24" x 14" is the size for the duct opening measurement only

+ Product Description Introducing the 3-coned supply grille for a T-bar lay-in

+ Product Details Size – 14" x 26" or 26" x 14" is the size for the duct opening measurement only

34" x 34" Cube Core Eggcrate Return Air Grille 18" Round Duct Pipe Versatile Compatibility: Our ceiling grills+ Product Details Size 34" x 34" is the size for the duct opening measurement only, actual front end outer dimensions are approximately 35. 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 electric