20"W X 18"H [Duct Opening] ALUMINUM RETURN GRILLE - Easy Air Flow - Linear Bar Grilles [Outer Dimensions: 21.875"W X 19.875"H] return filter allowing you to choose the

allowing you to choose the best option to suit your airflow needs

actual front end outer dimensions are approximately 20 5/8" width X 16 5/8" height

+ Product Details Size – 18" Wooden Corner Baseboard Grille

Premium Airflow Efficiency - High-performance cube core eggcrate design allows 95% airflow efficiency

+ Product Description Maximize your home’s airflow with this premium Air Supply Grille air supply grille

20"W X 18"H [Duct Opening] ALUMINUM RETURN GRILLE - Easy Air Flow - Linear Bar Grilles [Outer Dimensions: 21.875"W X 19.875"H] return filter allowing you to choose the+ Product Details Size 20"w X 18"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 21. 875" width X 19. 875" height. High Quality High quality aluminum with counter sunk screw holes (screws included) and no sharp edges. Design Unrestricted airflow For Your HVAC system noise free components no vibrating louvers etc. Powder Coat Finish Smooth, shiny, scratch resistant, beautiful. Looks like it was