6" x 34" or 34" x 6" Cube Core Eggcrate Return Air Grille flat stamped steel + Product Details Size –

+ Product Details Size – 24" x 24" with 10" collar T-Bar drop ceiling perforated return grill - metal back casing

+ Product Details Size - 34"w X 12"h is the size for the duct opening measurement only

actual front end outer dimensions are approximately 16 5/8" width X 8 5/8" height

+ Product Details Perfect Fit & Easy Sizing - Designed for a 20" x 30" OR 30" x 20" duct opening (measured at the opening)

back blades made of black plastic for reduced air noise and discreet appearance

6" x 34" or 34" x 6" Cube Core Eggcrate Return Air Grille flat stamped steel + Product Details Size –+ Product Details Size 6" x 34" or 34" x 6" is the size for the duct opening measurement only, actual front end outer dimensions are approximately 7. 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