top view brand new universal steel roof cap vent for exhaust fans with bird screen wire mesh and backdraft damper prevents outside

air conditioner backdraft damper bird screen black powder builtin cap clipping path coat finish construction cooling copy space diy applications dryer venting duct work ducting durable entering exhaust fans exterior flue galvanized home house industrial installation isolated white material mesh metal outdoor outside protection range hoods roof top ventilation roofing shingle square steel texture vent vents waterproof weather proof background view brand universal wire prevents background