36"w X 36"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 37.75"w x 37.75"h] Copper Coil-Insulated Line Set With a 6" diameter for

With a 6" diameter for the duct opening measurement

Actual Filter Size – 19 3/4"w x 15 3/4" x 1"

actual front end outer dimensions are approximately 34 5/8" width X 22 5/8" height

Design – Removable frame for easy filter change & cleaning - uses a 1" thick filter

[Outer Dimensions: 14

36"w X 36"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 37.75"w x 37.75"h] Copper Coil-Insulated Line Set With a 6" diameter for+ Product Details Size 36"w X 36"h X 2"d (for duct opening measurement only); actual front end outer dimensions are 37. 75" Width X 37. 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