Pete, yes there is an after market drain pan for the Coleman AC. I have a
Coleman replacement AC but not the pan. The pan is generic and is made by a
company in Florida -- the name and web site I can't remember but if you can
find my prior post(s) in the archives, the information is there. The down
side is the pan does not use the existing inside drain line installed in the
Airstream but probably could be modified to do so. The "standard"
installation the manufacturer shows on the web site uses a PVC pipe across
the roof to the exhaust vent on the roof for the fridge and down the vent
and discharges on the ground in front of the wheel well. Serviceable but not
original.
Jim Greene
' 68 Tradewind