4" X 10" Modern Victorian Floor Register Grille with Dampers - Decorative Grate - HVAC Vent Duct Cover - Antique Brass Compatible With Duct 6in + Product Details Heavy-Duty Steel

+ Product Details Heavy-Duty Steel Construction - Made from 20-gauge steel for superior strength and durability

providing efficient performance of up to 300m3/h

durable for indoor and outdoor use

Actual Filter Size – 19 3/4"w x 21 3/4" x 1"

Adjustable airflow control – Adjustable airflow control: The system allows users to customize the amount of air supply

4" X 10" Modern Victorian Floor Register Grille with Dampers - Decorative Grate - HVAC Vent Duct Cover - Antique Brass Compatible With Duct 6in + Product Details Heavy-Duty Steel4" 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 Contempo Design Forming a Luxurious & Impressive Piece For Your Home Quality Packaging Carefully Shrink Wrapped With