Heng's 26" x 26" White Exit Vent Lid for Hengs/ Elixir 90014OS-1 22-0364

Hinge measures 2-1/4 inch height. Replacement lid is made of plastic. When in normal use, these large exit vents draw out and emit three times the air flow of a conventional size dome vent. A unique added feature is that they are designed to allow a person to escape through the vent by engaging the emergency lever that opens the screen.