12" X 12" 2-Way Air Supply Grille – Steel HVAC Vent Cover with Damper, Wall/Ceiling Register, White w28h28 + Product Details Size –

+ Product Details Size – 20"w X 25"h is the size for the duct opening measurement only

actual front end outer dimensions are approximately 26

Ideal for Walls & Ceilings: Designed for seamless installation in standard 18" X 6" duct openings

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actual front end outer dimensions are approximately 20 5/8" width X 32 5/8" height -

12" X 12" 2-Way Air Supply Grille – Steel HVAC Vent Cover with Damper, Wall/Ceiling Register, White w28h28 + Product Details Size –+ Product Details Outer dimensions: 13. 75"W x 13. 75"H fits a 12" 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