24" x 36" or 36" x 24" Cube Core Eggcrate Return Air Grille Compatible with Duct 6" This aluminum adjustable louvered garage

This aluminum adjustable louvered garage vent allows air ventilation and circulation in your garage 24 hours a day

actual front end outer dimensions are approximately 10 5/8" width X 32 5/8" height

Actual Filter Size – 19 3/4"w x 27 3/4" x 1"

actual front end outer dimensions are approximately 32 5/8" width X 26 5/8" height

actual front end outer dimensions are approximately 36 5/8" width X 16 5/8" height

24" x 36" or 36" x 24" Cube Core Eggcrate Return Air Grille Compatible with Duct 6" This aluminum adjustable louvered garage+ Product Details Size 24" x 36" or 36" x 24" is the size for the duct opening measurement only, actual front end outer dimensions are approximately 25. 75" X 37. 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