In Reply to: ACTUALLY! posted by PHFaust on January 29, 2003 at 22:51:11:
the 40 hour heatpacks in the winter when shipping reptiles, just in case your shipment gets held up (it happens). The 18 hour ones just don't cut it IMHO. I have heard that Bass Pro Shops and sometimes Oshmans carry 40 hour ones but I have not personally seen them there. Wish I could be of more help, sorry!