8"w X 6"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 9.75"w x 7.75"h] 8" Round Duct Pipe with no sharp edges

with no sharp edges

+ Product Details Size – 28"w X 30"h is the size for the duct opening measurement only

1/4" - 6518 PSI

Actual Filter Size – 7 3/4"w x 19 3/4" x 1"

10"w X 4"h Is The Size For The Duct Opening Measurement Only

8"w X 6"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 9.75"w x 7.75"h] 8" Round Duct Pipe with no sharp edges+ Product Details Size 8"w X 6"h X 2"d (for duct opening measurement only); actual front end outer dimensions are 9. 75" Width X 7. 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