8"W X 14"H [Duct Opening] Steel Air Vent Return Grille - HVAC VENT DUCT COVER DIFFUSER - [Outer Dimensions: 9.75"W X 15.75"H] 3-Pack Hose Diameter Connection Size: 6mm

Hose Diameter Connection Size: 6mm i/d

+ Product Description Introducing our 18" x 24" or 24" x 18" Floor Grille - a reliable and durable air grill designed for exceptional performance and built to last

The powder-coated finish ensures a sleek look while protecting the grille from wear and tear

this access door is built to last and never rust

This 24" X 10" end cap is constructed with 26-gauge galvanized steel

8"W X 14"H [Duct Opening] Steel Air Vent Return Grille - HVAC VENT DUCT COVER DIFFUSER - [Outer Dimensions: 9.75"W X 15.75"H] 3-Pack Hose Diameter Connection Size: 6mm+ Product Details Size 8"w X 14"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 9. 75" width X 15. 75" height. Design Easy unrestricted airflow for your HVAC system 50 angled to provide maximum airflow. High Quality Solid stamped steel with counter sunk screw holes (screws included) and no sharp edges. Powder Coat Finish Smooth, shiny, scratch resistant, beautiful. Looks like it was just waxed.