28" x 34" or 34" x 28" Cube Core Eggcrate Return Air Grille Insulated Line Contorl Lever To Adjust Louvers

Contorl Lever To Adjust Louvers According To Season - Complete Open For Summer To Release The Heat

Actual Filter Size – 24 3/4"w x 5 3/4" x 1"

+ Product Details Size - 8"w X 24"h is the size for the duct opening measurement only

Traditional HVAC systems were designed for cold air

Actual Filter Size – 29 3/4"w x 23 3/4" x 1"

28" x 34" or 34" x 28" Cube Core Eggcrate Return Air Grille Insulated Line Contorl Lever To Adjust Louvers+ Product Details Size 28" x 34" or 34" x 28" is the size for the duct opening measurement only, actual front end outer dimensions are approximately 29. 75" X 35. 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