28" x 34" or 34" x 28" Cube Core Eggcrate Return Air Grille Insulated Line Traditional HVAC systems were designed

Traditional HVAC systems were designed for cold air

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

+ Product Details Size - 14"w X 32"h is the size for the duct opening measurement only

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

+ How To Measure A Grille Measure the size of the vent opening

28" x 34" or 34" x 28" Cube Core Eggcrate Return Air Grille Insulated Line Traditional HVAC systems were designed+ 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