Weather Cap For Nominal Duct Diameter 8 in Gas Appliance Category Not Applicable For Duct Height 8 in For Duct Width 8 in Inlet Diameter 8 in Material Steel Product Type Rain Cap Inside Diameter 8 in Material Thickness 18 ga Weight 7.1 lb Maximum Pressure Rating 42 in wc Maximum Temperature Rating 390 Degrees F Seal Material Nitrile Standards Not Applicable Finish Galvanized Color Silver Overall Height 17 1/4 in Shape Cap Connection Type Clamp Together End Type Quick-Fit