18" X 6" ADJUSTABLE AIR SUPPLY DIFFUSER - HVAC Vent Duct Cover Sidewall or Ceiling Adjustable Return Actual Filter Size – 9

Actual Filter Size – 9 3/4"w x 21 3/4" x 1"

+ Product Details Compact and Secure Design - Measures 3-7/8" wide x 3-1/2" high x 3" deep

this piece is the perfect touch of class you need to add to your decor

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

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18" X 6" ADJUSTABLE AIR SUPPLY DIFFUSER - HVAC Vent Duct Cover Sidewall or Ceiling Adjustable Return Actual Filter Size – 9+ Product Details Size 18"w X 6"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 19. 875" width X 8" 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