6" x 6" - 2-Way Extruded Aluminum Ceiling Diffuser Square - HVAC Vent Cover return filter It features an eight-tumbler lock

It features an eight-tumbler lock with a supplied key for secure access

+ Product Details Size - 24"w X 16"h is the size for the duct opening measurement only

+ Product Details Size - 10"w X 34"h is the size for the duct opening measurement only

Ideal for Walls & Ceilings: Designed for seamless installation in standard 10" X 8" duct openings

Carefully packaged to prevent damage during shipment

6" x 6" - 2-Way Extruded Aluminum Ceiling Diffuser Square - HVAC Vent Cover return filter It features an eight-tumbler lock+ Product Details Size 6" X 6" is the size for the duct opening measurement only, actual front end outer dimensions are 3". Design Equipped with lever for full airflow control; back blades made of black plastic for reduced air noise and discreet appearance; "Opposing" back blades, ensuring they don't overlap, provide precise damper control and superior air dispersion. High Quality Aluminum The premium durable aluminum will never rust and it will never