Universal VentGuards offer a reliable solution to protect vent terminations from animal intrusion for all non-dryer vent applications. Universal VentGuards are constructed of 18-gauge, 3/8", 304 stainless steel mesh and durable 16-gauge, stainless steel base that will not rust or corrode. Easy to install, and fits over most 3 in. or 4 in.hood style bathroom and kitchen exhaust vents. The white powder-coat finish blends in with many exterior surfaces and can easily be painted to match any exterior. Regular maintenance is easy with the keyhole on/off attachment. Made in the USA.