4" X 12" Modern Victorian Floor Register Grille With Dampers - Decorative Grate - HVAC Vent Duct Cover - Matte Black Fixed Blades with Damper } + Product Details Size

} + Product Details Size & Compatibility - The size of a boot register end is 10" X 4" X 7" galvanized floor boot end center 26-gauge

Actual Filter Size – 33 3/4"w x 23 3/4" x 1"

High Quality – A uniquie combination of cotton & synthetic fibers gives you the most filtration and the least air resistance - equals great air & easy airflow for your system

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+ Product Details Size - 16"w X 28"h X 2"d (for duct opening measurement only)

4" X 12" Modern Victorian Floor Register Grille With Dampers - Decorative Grate - HVAC Vent Duct Cover - Matte Black Fixed Blades with Damper } + Product Details Size4" X 12" Is The Size For The Duct Opening (floor vent hole) Measurement Only, Actual Front End Outer Dimensions Are 5. 5" X 13. 5" 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