28" x 30" or 30" x 28" Cube Core Eggcrate Return Air Grille Copper Coil Actual Filter Size – 13

Actual Filter Size – 13 3/4"w x 15 3/4" x 1"

actual front end outer dimensions are approximately 32 5/8" width X 30 5/8" height

Works for every air conditioning & refrigeration application including ductless mini-split

Actual Filter Size – 13 3/4"w x 19 3/4" x 1"

+ Product Details Size – 14"w X 10"h is the size for the duct opening measurement only

28" x 30" or 30" x 28" Cube Core Eggcrate Return Air Grille Copper Coil Actual Filter Size – 13+ Product Details Size 28" x 30 or 30" x 28" is the size for the duct opening measurement only, actual front end outer dimensions are approximately 29. 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