well ok then. Since you don't care.........Yep. Vent hole. Two have the difference of not having the rubber lining- just a raw edge plugged... But the one that's "lined" (which I'm assuming is the odd one out y'all are saying is "strictly" for humidifier) is the only one I have open.
:razz
I'm right. Y'all are wrong.
I'm kidding. I don't care that much about being right on this one.
Even though I am.
http://www.gqfmfg.com/cabinet-accessories/3030-water-reserve-system/

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