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 Design – Fixed Hinged for Height_14in WD G128 hp jblade overlay

Design – Fixed Hinged for easy filter change & cleaning - uses a 1" thick filter

Actual Filter Size – 19 3/4"w x 25 3/4" x 1"

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

actual front end outer dimensions are approximately 28 5/8" width X 10 5/8" height

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

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 Design – Fixed Hinged for Height_14in WD G128 hp jblade overlay Design – Fixed Hinged for easy filter change & cleaning uses a 1" thick filter Actual Filter Size – 19 3 4"w x 25 3 4" x 1"