18"w X 18"h Aluminum Privacy Door HVAC Air Grille - "V" Shaped Louvers Ensure 100% View Block - Supply or Return 10" Round Duct Pipe + Product Details Size –

+ Product Details Size – 14"w X 16"h is the size for the duct opening measurement only

Universal Fit – Measures 6-1/4" wide x 4-3/4" high x 3" deep

Actual Filter Size – 13 3/4"w x 13 3/4" x 1"

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18"w X 18"h Aluminum Privacy Door HVAC Air Grille - "V" Shaped Louvers Ensure 100% View Block - Supply or Return 10" Round Duct Pipe + Product Details Size –+ Product Details Size 18"w X 18"h is the size for the duct opening measurement only, actual front end outer dimensions are 19" Width X 19" Height Design special "V" shaped louvers ensure 100% view block while ensuring easy un restricted air flow Installation Location Wall or door mount door thickness up to 32mm anodised finish smooth & beautiful High Quality Aluminum The premium durable aluminum will never rust and it will never wear through leaving