1998 H410 arch drain/vent?

Aug 17, 2010
208
Hunter 410 Dover NH
I have a vent on the port side just below and behind the fiberglass arch. It is connected to a short hose that connects to the box the arch sits in. Does anyone know what this is supposed to do? Is it a vent to provide air in the arch is it a water drain? Stumped...

Thanks