Colour Family: WHITE Material: METAL/PLASTIC Assembled Product Length: 1" Assembled Product Height: 4" Assembled Product Width: 4" Diameter: 4" . 4" louvered cap with 4" diameter aluminum pipe Installation instructions included Non-stick louvers UV resistant plastic Can be mounted on brick, concrete or siding J-channel flange sold separately to cap / hood, for use when installing on exterior siding up to 1" thick