14"W X 12"H [Duct Opening] Aluminum Double Deflection Adjustable Air Supply HVAC Diffuser - [Outer Dimensions: 15.6"W X 13.6"H] return filter If your hole is 14"

If your hole is 14" wide by 20" tall

Actual Front End Outer Dimensions Are 34" Width X 10" Height - SEE IN DESCRIPTION HOW TO MEASURE A GRILLE

it integrates effortlessly into T-bar or plaster frame ceilings

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actual front end outer dimensions are approximately 10 5/8" width X 30 5/8" height

14"W X 12"H [Duct Opening] Aluminum Double Deflection Adjustable Air Supply HVAC Diffuser - [Outer Dimensions: 15.6"W X 13.6"H] return filter If your hole is 14"+ Product Details Size 14"w X 12"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 15. 6" width X 13. 6" height. Design Full Control Vertical Horizontal Air flow Direction. Horizontal blades in the front, Vertical blades in the back, both individually adjustable. High Quality Aluminum The premium durable aluminum will never rust and it will never wear through leaving the material with an elegant,