??Durable Stainless Steel Material?The exterior wall vent hood is made of 304 stainless steel material, durable, anti-rust and corrosion resistant.
??Automatically open and close thru blow?The air vent duct grill can easily open the flaps when any pressure is applied from the inside. While it will shut the louvers when the dryer stop pushing hot air thru the vents. It helps to keep the draft from coming thru the vents during the cold days .
??Weather and Pest Proof? Louvers of the air vent are especially designed to prevent water from entering your home, and with a stainless steel louver protect you from annoying rodents like mice, rats, birds, and squirrels.
??Easy Installation? Inserting the tube into the air vent grille cover, then you only need to mount it on the wall with screws or silicon seal.
??Multiple Usages? Ideal for vent pipes / hoses, bathroom vents & extractors, air conditioning units, kitchen fans & vents, all home wall vents, heat transfer and ventilation systems, gas & electric dryers, cooker hood extractors, as well as a wide variety of industrial uses.