Product review (3 stars): very small - almost didn't fit in the humidifier
For the price, I wanted to take the chance and order these for my Vicks cool mist humidifier since the name brand ones are so expensive and we try to change them out at least once a month.  These are an off brand and are the same shape but a completely different size than the name brand version.  It took some finagaling to even get it to fit but once we got it in the humidifier, it did the job.  Next time I will use the name brand though.  You get what you pay for with this replacement filter.