16" x 30" or 30" x 16" Cube Core Eggcrate Return Air Grille 2-Way Can be hooked up with

Can be hooked up with our Butterfly Dampersfor precise airflow control

Actual Filter Size – 24 3/4"w x 35 3/4" x 1"

actual front end outer dimensions are approximately 20 5/8" width X 28 5/8" height

actual front end outer dimensions are approximately 18 5/8" width X 12 5/8" height -

+ Product Details Size - 20"w X 16"h is the size for the duct opening measurement only

16" x 30" or 30" x 16" Cube Core Eggcrate Return Air Grille 2-Way Can be hooked up with+ Product Details Size 16" x 30" or 30" x 16" is the size for the duct opening measurement only, actual front end outer dimensions are approximately 17. 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