Heng’S Industries 66621-C2 Escape Hatch/Exit Vent With Aluminum Frame – 22 X 22 Durable Rv And Trailer Emergency Ventilation Solution

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 heavy aluminum extrusion to assure secure mounting. Dependable operation featuring leak-resistant lid and weather-tight frame. Includes opaque white plastic lid and white garnish.