12" x 28" or 28" x 12" Cube Core Eggcrate Return Air Grille 10" Round Duct Pipe allowing unrestricted airflow for optimal

allowing unrestricted airflow for optimal HVAC performance

This Thermostat from Bramec will fit almost any thermostat

+ Product Details Size - 20"w X 16"h is the size for the duct opening measurement only

+How To Measure A Grille Overall Size:

12" x 28" or 28" x 12" Cube Core Eggcrate Return Air Grille 10" Round Duct Pipe allowing unrestricted airflow for optimal+ Product Details Size 12" x 28" or 28" x 12" is the size for the duct opening measurement only, actual front end outer dimensions are approximately 13. 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