6" X 4" ADJUSTABLE AIR SUPPLY DIFFUSER - HVAC Vent Duct Cover Sidewall or Ceiling w34h34 Designed for both wall and

Designed for both wall and ceiling applications

actual front end outer dimensions are approximately 21

Actual Filter Size – 19 3/4"w x 9 3/4" x 1"

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6" X 4" ADJUSTABLE AIR SUPPLY DIFFUSER - HVAC Vent Duct Cover Sidewall or Ceiling w34h34 Designed for both wall and+ Product Details Size 6"w X 4"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 7. 875" width X 6" height. High Quality High quality steel construction, no scuff powder coat durable finish, smooth, shiny, scratch resistant, no sharp edges, 2 recessed screw holes on each side with screws included, screws same color as vent cover, easy installation. Adjustable airflow control Adjustable airflow