Thanks, RB. I got out a magnifying glass and an Ott Light and peered down into the two respective spares, and looked at the imprinted info, and now understand what I got
A lot of discussion about cleaning... my instinct is to soak them in isopropyl alcohol, not Vodka, just because it's cheaper and I don't keep Vodka around. What is the reason for using more expensive Vodka? Because it is "food grade"? Wouldn't any alcohol evaporate fairly quickly?
I've soaked old coils in water and then dried them. Have not tried resuing them yet, until I learned more about maybe better methods of cleaning.
I soaked one in isopropyl and then let it sit in hot water and then dried it thoroughly. To be honest, it lasted a few more days, then I still had to replace it. I'm getting on average a good two weeks out of coil. That's much less than the cost of one pack of cigarettes, so I'm just throwing them when they're done and popping in a new one. It's far simpler for me.