16" X 12" 2-Way Air Supply Grille – Steel HVAC Vent Cover with Damper, Wall/Ceiling Register, White 10in diameter Ideal for Walls & Ceilings:

Ideal for Walls & Ceilings: Designed for seamless installation in standard 20" X 8" duct openings

Great emphasis has been invested in the design of this product to prevent it from kinking in sharp bends & turns and to hold steady and at full diameter in all applications

+ Product Details Size – 32"w X 18"h is the size for the duct opening measurement only

+ Product Details Size - 4" Diameter is the size for the duct opening measurement only

16" X 12" 2-Way Air Supply Grille – Steel HVAC Vent Cover with Damper, Wall/Ceiling Register, White 10in diameter Ideal for Walls & Ceilings:+ Product Details Outer dimensions: 17. 75"W x 13. 75"H fits a 16" X 12" duct opening Durable stamped steel construction ensures long lasting performance Designed for sidewall and ceiling installation with included screws Multi shutter damper with easy lever for precise airflow control Smooth powder coated white finish for a sleek look and scratch resistance + Product Description Maximize your homes airflow with this premium Air Supply Grille air