There really aren't than many choices out there. First you'll have to determine if it's a 30 amp or 50 amp, and then go shopping. I'd guess the biggest manufacturers are Marinco or Hubbell ; there are two styles that I'm aware of, one has a screw on metal lid and is pretty much watertight. The other has a flip up plastic lid and would be "weatherproof". It's a lot less expensive.
Actually you may not have to replace the entire thing. I think you can just buy the innards and install them in your existing receptacle; you'll save a bunch. Check Boatfix.com; I found a 30 amp interior there for about $35.
She's a tired old barge but she's paid for! http://s71.photobucket.com/alb...p;current=ef324993.pbw
06:00:18 PM by