Product review (4 stars): It's like a tropical rain forest in here now!
These fit into our Hunter Nite Glo humidifier perfectly.  The original wick was supposed to be permanent but after years the mineral deposits accumulate and are very hard to get off.  Easier to replace with these. Shipping was not the fastest - probably a week and a half - which is not bad I guess but we are impatient since we have been spoiled by amazon prime.