20" x 32" or 32" x 20" Cube Core Eggcrate Return Air Grille 18" Diameter Actual Filter Size – 19

Actual Filter Size – 19 3/4"w x 21 3/4" x 1"

Installation of the vents will eliminate the need to raise the door ensuring security and constant air flow and reduced heat transfer into attics and adjacent house walls

actual front end outer dimensions are approximately 34 5/8" width X 36 5/8" height

Actual Filter Size – 25 3/4"w x 17 3/4" x 1"

this diffuser ensures long-lasting durability and adds a touch of elegance to any space

20" x 32" or 32" x 20" Cube Core Eggcrate Return Air Grille 18" Diameter Actual Filter Size – 19+ Product Details Size 20" x 32" or 32" x 20" is the size for the duct opening measurement only, actual front end outer dimensions are approximately 21. 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