Intake Vent Cap For Nominal Duct Diameter 6 in Gas Appliance Category Not Applicable For Duct Height Not Applicable For Duct Width Not Applicable Inlet Diameter 6 in Material Aluminum Steel Overall Length 15 1/4 in Product Type Vent Cap Inside Diameter 6 in Material Thickness 24 ga Weight 3 lb Maximum Pressure Rating Not Applicable Maximum Temperature Rating Not Applicable Seal Material Not Applicable Standards Not Applicable Color Silver Overall Height 7 7/8 in Shape Round