12" X 12" [Duct Opening] 4-Way Air Vent Adjustable Aluminum Curved Blades Integral Multi-Shutter Damper HVAC Diffuser [Outer Dimensions: 13.75"W X 13.75"H] 2-Way you have 16 different varieties

you have 16 different varieties to choose from

Actual Filter Size – 27 3/4"w x 19 3/4" x 1"

actual front end outer dimensions are approximately 32 5/8" width X 18 5/8" height

Carefully Shrink Wrapped With Cardboard Backing To Prevent Damage In Shipment

powder-coated surface is scratch-resistant

12" X 12" [Duct Opening] 4-Way Air Vent Adjustable Aluminum Curved Blades Integral Multi-Shutter Damper HVAC Diffuser [Outer Dimensions: 13.75"W X 13.75"H] 2-Way you have 16 different varieties+ Product Details Size 12"w X 12"h is the size for the duct opening measurement only, actual front end outer dimensions are 13. 75" width X 13. 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