When we picked up our new trailer the tech giving us the pre-delivery inspection said I could drill a hole in the edge of the plastic for the drip hose
and he advised screen for the vents in the fridge hatch. I'll have to see if
the hose is long enough for that. The only reason to do that is so you can
remove the hatch without worrying about getting the hose back thru
the screen when replacing the hatch. You must have the hose outside or
it can rot out your floor under the fridge.
I used hot glue to hold flexible window screen material on the back side
of my previous fridge hatch and see no reason not to again. Ordered camco SS screens for water heater and furnace vent just now from Wally World.
Free pickup in store but I never get out of there without buying something
Also BE SURE the drain hose has a screen over the end or a mud-daubber can clog it right up!