I was recently given a cooler from Costco that is not quite perfect as an MLT, but I made a few adaptions that I believe will allow it to work out well. The model is a 62 Quart Igloo MaxCold Island Breeze cooler. Before I test it out, does anybody have any tips based on what they see here? The temperature does hold nicely and the dead volume is about 4 cups, or just under a liter.
This is the model:
Here's an image of the inside: