8"w X 8"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 9.75"w x 9.75"h] w14h14 Insulation density is 30kgs/cbm =

Insulation density is 30kgs/cbm = 0

4" X 10" Is The Size For The Duct Opening (floor/vent hole) Measurement Only

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

Design – This airflow control component are made to connect to a drop ceiling lay-in diffuser grille

8"w X 8"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 9.75"w x 9.75"h] w14h14 Insulation density is 30kgs/cbm =+ Product Details Size 8"w X 8"h X 2"d (for duct opening measurement only); actual front end outer dimensions are 9. 75" Width X 9. 75" Height Weather and Pest Proof These louvers are especially designed to prevent water from entering your home, and with a built in back 1 2" mesh they also protect you from annoying rodents like mice, rats, birds, and squirrels High Quality Aluminum The premium durable aluminum will never rust and it will never wear