18" x 26" or 26" x 18" Cube Core Eggcrate Return Air Grille Round Damper Ring + Product Description Enhance your

+ Product Description Enhance your HVAC system with our Aluminum Return Filter Linear Bar Grille

+ Product Details Size - 14"w X 30"h is the size for the duct opening measurement only

actual front end outer dimensions are approximately 16 5/8" width X 14 5/8" height

UPC – 810107141946

18" x 26" or 26" x 18" Cube Core Eggcrate Return Air Grille Round Damper Ring + Product Description Enhance your+ Product Details Size 18" x 26" or 26" x 18" is the size for the duct opening measurement only, actual front end outer dimensions are approximately 19. 75" X 27. 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