24"W X 8"H [Duct Opening] Aluminum Double Deflection Adjustable Air Supply HVAC Diffuser - [Outer Dimensions: 25.6"W X 9.6"H] Material_Steel Example: If your hole is

Example: If your hole is 20" wide by 14" tall

Actual Filter Size – 31 3/4"w x 11 3/4" x 1"

Actual Filter Size – 21 3/4"w x 29 3/4" x 1"

please note that the total outer dimensions of the grille measure 7" in diameter

actual front end outer dimensions are 15" Width X 15" Height

24"W X 8"H [Duct Opening] Aluminum Double Deflection Adjustable Air Supply HVAC Diffuser - [Outer Dimensions: 25.6"W X 9.6"H] Material_Steel Example: If your hole is+ Product Details Size 24"w X 8"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 25. 6" width X 9. 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,