Heng’s 31121-C2 Escape Hatch/Exit Vent – 13″ x 20″

Fresh air ventilation: a turn of the crank provides a large vent area, lets air through, and keeps insects out. The sturdy frame installs easily and is made of high impact plastic to assure secure mounting. Dependable operation featuring leak-resistant lid and weather-tight frame. Includes opaque white plastic lid and white garnish.