14"W X 12"H [Duct Opening] Aluminum Double Deflection Adjustable Air Supply HVAC Diffuser - [Outer Dimensions: 15.6"W X 13.6"H] Black + Product Details Size –

+ Product Details Size – 18"w X 6"h is the size for the duct opening measurement only

Secure Locking Mechanism – Features a permanently attached eight-tumbler lock with a supplied key for added security

actual front end outer dimensions are approximately 36 5/8" width X 18 5/8" height

16" x 3" Aluminum Spiral Duct Air Vent Grille Cover - Fully Adjustable Double Deflection HVAC Air Supply

+ Product Details Size – 18"w X 8"h is the size for the duct opening measurement only

14"W X 12"H [Duct Opening] Aluminum Double Deflection Adjustable Air Supply HVAC Diffuser - [Outer Dimensions: 15.6"W X 13.6"H] Black + Product Details Size –+ 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,