24"w X 24"h Aluminum Privacy Door HVAC Air Grille - "V" Shaped Louvers Ensure 100% View Block - Supply or Return 18" Diameter Actual Filter Size – 27

Actual Filter Size – 27 3/4"w x 7 3/4" x 1"

Installation of the vents will eliminate the need to raise the door ensuring security and constant air flow and reduced heat transfer into attics and adjacent house walls

+ Product Details Size - 18"w X 20"h is the size for the duct opening measurement only

actual front end outer dimensions are approximately 28 5/8" width X 36 5/8" height

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24"w X 24"h Aluminum Privacy Door HVAC Air Grille - "V" Shaped Louvers Ensure 100% View Block - Supply or Return 18" Diameter Actual Filter Size – 27+ Product Details Size 24"w X 24"h is the size for the duct opening measurement only, actual front end outer dimensions are 25" Width X 25" 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