6" X 4" ADJUSTABLE AIR SUPPLY DIFFUSER - HVAC Vent Duct Cover Sidewall or Ceiling w34h34 And The Cooler Air From

And The Cooler Air From Outside WIll Flow In From The Bottom

Actual Filter Size – 7 3/4"w x 27 3/4" x 1"

Designed for both wall and ceiling applications

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

actual front end outer dimensions are approximately 21

6" X 4" ADJUSTABLE AIR SUPPLY DIFFUSER - HVAC Vent Duct Cover Sidewall or Ceiling w34h34 And The Cooler Air From+ 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