18" x 32" or 32" x 18" Cube Core Eggcrate Return Air Grille 3-Way or 4-Way + Product Details Size –

+ Product Details Size – 32"w X 22"h is the size for the duct opening measurement only

Rigid Built For External Use– The sturdy and rigid design features noise free components that eliminates vibration and excess noise to the louvers

Design – This airflow control component are made to connect to a drop ceiling lay-in diffuser grille

Actual Filter Size – 31 3/4"w x 5 3/4" x 1"

18" x 32" or 32" x 18" Cube Core Eggcrate Return Air Grille 3-Way or 4-Way + Product Details Size –+ Product Details Size 18" x 32" or 32" x 18" is the size for the duct opening measurement only, actual front end outer dimensions are approximately 19. 75" X 33. 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