AmAir HT filters are designed for use in high temperature applications, up to 500°F(260 °C). This filter’s media pack is made of a special high loft glass with a glass fibre backing, laminated with a wire mesh grid on the air leaving side. The media pack is bonded to a sturdy aluminized steel U-channel frame. An expanded metal faceguard on the air leaving side retains the media pack at elevated temperatures. This filter also has a gasket on the clean air side. Other configurations are available on request.