Product review (3 stars): Fit well but not as durable as I had hoped
Got thia for the Vicks Starry Night humidifier and it fits well, but doesn't last as long as the filter that came with the unit. It falls apart when cleaning and leaves silver coating in the tray. To be fair I didn't dry it daily like recommended but I didn't with the first one.  I bleach out the humidifier and pieces and fully dry once a week.