6" x 10" or 10" x 6" Cube Core Eggcrate Return Air Grille Return Actual Filter Size – 19

Actual Filter Size – 19 3/4"w x 9 3/4" x 1"

+ Product Details Size – 40"w X 20"h is the size for the duct opening measurement only

you have 16 different varieties to choose from

5/8" - 2579 PSI

We carry sizes the big box stores don't

6" x 10" or 10" x 6" Cube Core Eggcrate Return Air Grille Return Actual Filter Size – 19+ Product Details Size 6" x 10" or 10" x 6" is the size for the duct opening measurement only, actual front end outer dimensions are approximately 7. 75" X 11. 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