I've been using Coleman Marine coolers for many years in my boat.
If something does break, parts are very easy to get, and their made in USA.
http://www.cabelas.com/product/Cole...Tz7-1i9ICFYePswod7HAD_A&gclsrc=aw.dsAs stated, 100qt is very heavy when full.
There's more than one model of the marine coolers. I think the "Pros" are the best, but I've had the regular Coleman Marines last for many years of rough service.