6" Circular Round Plastic HVAC Supply Grille Air Diffuser -Vent Duct Cover [Outer Dimensions: 8"] Filter Grille Its locking eight-tumbler mechanism and

Its locking eight-tumbler mechanism and supplied key safeguard your thermostat from tampering

actual front end outer dimensions are approximately 27 5/8" width X 32 5/8" height

Box or Other Attachments Needed

+ Product Details Perfect Fit & Easy Sizing - Designed for a 10" x 20" duct opening (measured at the opening)

Its linear bar design maximizes ventilation

6" Circular Round Plastic HVAC Supply Grille Air Diffuser -Vent Duct Cover [Outer Dimensions: 8"] Filter Grille Its locking eight-tumbler mechanism and+ Product Details Size 6" Diameter is the size for the duct opening measurement only, actual front end outer dimensions are 8" diameter. Design Made of strong durable ABS plastic, will last forever & never rust. Easy removal for cleaning. Airflow Improved airflow dynamics long neck bBody reduced noise design integrated spring fasteners. Easy Installation Just pop the diffuser right into the wall duct hole and the side springs will hold it right into