16"w X 16"h Aluminum Privacy Door HVAC Air Grille - "V" Shaped Louvers Ensure 100% View Block - Supply or Return w30h30 + Product Details Size -

+ Product Details Size - 20"w X 32"h is the size for the duct opening measurement only

Actual Filter Size – 7 3/4"w x 5 3/4" x 1"

+ Product Details Size – 22"w X 6"h is the size for the duct opening measurement only

+ Product Details Size – 4"w X 10"h is the size for the duct opening measurement only

Designed for a 1" thick filter

16"w X 16"h Aluminum Privacy Door HVAC Air Grille - "V" Shaped Louvers Ensure 100% View Block - Supply or Return w30h30 + Product Details Size -+ Product Details Size 16"w X 16"h is the size for the duct opening measurement only, actual front end outer dimensions are 17" Width X 17" 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