I've been looking at getting into all grain, and just found that I already have a Coleman Extreme cooler for doing batch sparging. No idea what size it is, though, and searching around Coleman's website, Amazon, etc... hasn't helped - the measurements they post don't seem to match what I have. Mine has 2 model #'s listed on the bottom, one of which seems to correspond to the 58-quart (model #6273) and the other to the 70-quart model (6270). It's probably in the 5-10 year old range, a darker royal blue as opposed to the more modern lighter steel/gray blue (which looks to be a slightly different shape)
So, I was wondering if someone could measure the inside of their Coleman Extreme and let me know.
Inside Length/Width: 27" @ top, 24" @ bottom
Inside Depth: 13 3/8" @ top
Inside Height: 14"