6X6 3 WAY Supply Grills w6h6 + Product Details Size -

+ Product Details Size - 18"w X 36"h is the size for the duct opening measurement only

actual front end outer dimensions are approximately 12 5/8" width X 28 5/8" height

75" width X 33

Designed for sidewall and ceiling installation with included screws

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6X6 3 WAY Supply Grills w6h6 + Product Details Size -6"w X 6"h 3 Way Fixed Curved Blade Air Supply Diffuser Vent Duct Cover Grille Register Sidewall or Cieling High Airflow White 6"w X 6"h Is The Size For The Duct Opening Measurement Only, Actual Front End Outer Dimensions Are 7. 75" Width X 7. 75" Height SEE BELOW IN DESCRIPTION HOW TO MEASURE A GRILLE You may think of grilles and registers as a generic component of the ventilation system in your house. But they are also the most visible representation