28" x 28" Cube Core Eggcrate Return Air Grille return grille accordion-header h2

accordion-header h2

pair it with our butterfly dampers

Actual Filter Size – 11 3/4"w x 13 3/4" x 1"

angle them down for effective warmth distribution

+ Product Details Perfect Fit & Easy Sizing - Designed for a 10" x 14" or 14" x 10" duct opening (measured at the opening)

28" x 28" Cube Core Eggcrate Return Air Grille return grille accordion-header h2+ Product Details Size 28" x 28" is the size for the duct opening measurement only, actual front end outer dimensions are approximately 29. 75" X 29. 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 electric