12"W X 10"H [Duct Opening] 3-Way Aluminum Curved Blade Adjustable Air Supply HVAC Diffuser [Outer Dimensions: 13.75"W X 11.75"H] Return Grille actual front end outer dimensions

actual front end outer dimensions are approximately 32 5/8" width X 16 5/8" height

actual front end outer dimensions are approximately 18 5/8" width X 10 5/8" height

Actual Filter Size – 15 3/4"w x 15 3/4" x 1"

Exceptional Craftsmanship: Hand-inspected for quality

with actual outer dimensions of 14

12"W X 10"H [Duct Opening] 3-Way Aluminum Curved Blade Adjustable Air Supply HVAC Diffuser [Outer Dimensions: 13.75"W X 11.75"H] Return Grille actual front end outer dimensions+ Product Details Size 12"w X 10"h is the size for the duct opening measurement only, actual front end outer dimensions are 13. 75" width X 11. 75" height. Design Individually adjusting curved blades. Multi shutter damper with handle operator to adjust air flow. Screws Included High Quality Aluminum The premium durable aluminum will never rust and it will never wear through leaving the material with an elegant, beautiful, and smooth surface, adds a