8"W X 8"H [Duct Opening] Aluminum Double Deflection Adjustable Air Supply HVAC Diffuser - [Outer Dimensions: 9.6"W X 9.6"H] 18" Round Duct Pipe while the powder-coat finish offers

while the powder-coat finish offers a sleek

Actual Filter Size – 9 3/4"w x 7 3/4" x 1"

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

+ Product Details Size - 6"w X 28"h is the size for the duct opening measurement only

+ Product Description Introducing the 3-coned supply grille for a T-bar lay-in

8"W X 8"H [Duct Opening] Aluminum Double Deflection Adjustable Air Supply HVAC Diffuser - [Outer Dimensions: 9.6"W X 9.6"H] 18" Round Duct Pipe while the powder-coat finish offers+ Product Details Size 8"w X 8"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 9. 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,