The girl working at the Waveland, MS store told me when I picked up 6 cans for me and friends that they had those cans since a hurricane several years ago and just marked them down recently to get rid of them.
A few of us picked up several of the tan scepter cans from Lowes in south MS for the same price. They also had the blue water cans for a few dollars less. Didn't see any green ones.