14"w X 30"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 15.75"w x 31.75"h] 12" Round Duct Pipe it integrates effortlessly into T-bar Compatible With Duct 7in Applications This sheet metal DDAG-A-1212

it integrates effortlessly into T-bar or plaster frame ceilings

75"H – fits a 16" X 10" duct opening

Actual Filter Size – 31 3/4"w x 27 3/4" x 1"

Actual Filter Size – 11 3/4"w x 21 3/4" x 1"

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

14"w X 30"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace Weather Resistant Air Grille with Screen Mesh [Outer Dimensions 15.75"w x 31.75"h] 12" Round Duct Pipe it integrates effortlessly into T bar Compatible With Duct 7in Applications This sheet metal DDAG A 1212 it integrates effortlessly into T bar or plaster frame ceilings 75"H – fits a 16" X 10" duct opening