30" x 30" Cube Core Eggcrate Return Air Grille steel + Product Details Size -

+ Product Details Size - 16"w X 34"h is the size for the duct opening measurement only

75"H – fits a 16" X 4" duct opening

this 4-way air vent diffuser allows you to precisely control airflow

The powder-coat finish lends a smooth

+ Product Details Size – 22" x 34" or 34" x 22" is the size for the duct opening measurement only

30" x 30" Cube Core Eggcrate Return Air Grille steel + Product Details Size -+ Product Details Size 30" x 30" is the size for the duct opening measurement only, actual front end outer dimensions are approximately 31. 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 electric