HVAC Premium 18"w X 18"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 19.75"w x 19.75"h] w24h24 Designed to seamlessly integrate with RGADJ-3012 7" Round Duct Pipe Quality Packaging carefully packaged

Designed to seamlessly integrate with T-Bar vent covers in drop ceiling setups

Actual Filter Size – 19 3/4"w x 23 3/4" x 1"

High quality – High quality solid stamped steel with counter-sunk screw holes (screws included) and no sharp edges

Actual Filter Size – 13 3/4"w x 29 3/4" x 1"

HVAC Premium 18"w X 18"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace Weather Resistant Air Grille with Screen Mesh [Outer Dimensions 19.75"w x 19.75"h] w24h24 Designed to seamlessly integrate with RGADJ 3012 7" Round Duct Pipe Quality Packaging carefully packaged Designed to seamlessly integrate with T Bar vent covers in drop ceiling setups Actual Filter Size – 19 3 4"w x 23 3 4" x 1"