RELIABILT Brand, Durability, Quality, Value for Money, Longevity and Trust Factor Duct Size :4-in x 8-in, suitable for floor opening size 4-in x 8-in Steel construction, welded construction, excellent loading performance Durable brown finish, provide a clean beautification to your floor Multi-angled rolled fins For floor application Color/Finish Family: Brown Manufacturer Color/Finish: Brown Duct Opening Height (Inches): 4 Duct Opening Width (Inches): 8 Duct Size: 4-in x 8-in Outside Height (Inches): 5.5 Outside Width (Inches): 9.5 Weight (lbs.): 0.67 Commercial/Residential: Commercial/Residential Design: Louvered Hardware Included: No Installation Location: Floor Material: Steel Package Quantity: 1 Paintable/Stainable: Paintable Shape: Rectangle Style: Basic Volume Control Damper: Yes Warranty: 2-year limited App Compatibility: No Bluetooth Compatibility: No Wi-Fi Compatibility: No CA Residents: Prop 65 Warning(s): No UNSPSC: 47121600