4" X 10" Modern Victorian Floor Register Grille With Dampers - Decorative Grate - HVAC Vent Duct Cover - Matte Black 5in diameter Dimensions With Outer End are

Dimensions With Outer End are 17

Actual Filter Size – 15 3/4"w x 27 3/4" x 1"

this flex duct decreases the pressure loss and provides a more hygienic environment

75"H – fits a 18" X 4" duct opening

Stay organized with nine internal pockets

4" X 10" Modern Victorian Floor Register Grille With Dampers - Decorative Grate - HVAC Vent Duct Cover - Matte Black 5in diameter Dimensions With Outer End are4" X 10" Is The Size For The Duct Opening (floor vent hole) Measurement Only, Actual Front End Outer Dimensions Are 5. 5" X 11. 5 in" SEE BELOW IN DESCRIPTION HOW TO MEASURE A GRILLE Solid Rigid Steel Body For Durability and Reliability With Dampers Operate able by Switch For Airflow Directional Control Premium Plated Finish and Modern Victorian Design Forming a Luxurious & Impressive Piece For Your Home Quality Packaging Carefully Shrink Wrapped With