I have a 270 qt and 50 qt Icey Tech, and they are awesome coolers. If you follow the manufacturers directions for precooling they will hold ice for several days. All their parts are industrial grade, you'll never suffer from a broken hinge or latch. Combine the 50 qt with a Carolina bait tray and they are great for balleyhoo or anyother bait you might want to keep cold. Right now mine has a couple of dozen eels residing in it, waiting to meet Mr. Striper tomorrow afternoon. Last but not least, they also make a nice stand for showing off the days catch!!!
That's all we use on the Clean Sweep! Wouldn't buy anything else! I personally have 3 of them & they do what they say! Just remember to cool the thing down first, after it's cool it will keep ice for a long time!
put some as they call it sacrificial ice in it to bring the temp in the cooler down 10 min-15min then drain and add all the ice. the less air space the better.