28"w X 20"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 29.75"w x 21.75"h] Round Damper Ring High diffusion induction rates result

High diffusion induction rates result in rapid temperature and velocity equalization of the mixed air mass well above the zone of occupancy

+ Product Details Perfect Fit & Easy Sizing - Designed for a 20" x 10" OR 10" x 20" duct opening (measured at the opening)

Our filter grille latch is easy to use on your fingers and requires no screwdriver to open

the T-Bar vent covers

+ Product Description The Clear Plastic Thermostat Guard is designed to provide secure protection for your thermostat while maintaining an attractive

28"w X 20"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 29.75"w x 21.75"h] Round Damper Ring High diffusion induction rates result+ Product Details Size 28"w X 20"h X 2"d (for duct opening measurement only); actual front end outer dimensions are 29. 75" Width X 21. 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