Tsnider
WKR
you guys should try out the Arctic Ice packs as well. theyre expensive but last forever. The tundra series will freeze anything solid in your cooler. if you put a case of sun warmed beer on top of the tundra series you will go back 2 hours later and every beer will have blown up from freezing.
i used 2 Alaska series in the bottom of my pelican 45 with frozen foods, precooled beer and it they are better than ice and its nice having no water at the bottom.
they last a little longer than ice if you get the right amount for the cooler size. the main thing is to precool your cooler for a good 4-6 hours with a frozen water jug or whatever. and the cool thing is they stay basically the same temp until they are totally thawed out.