Product review (5 stars): The best cascade filter I have found for the Lasko 1120 Humidifier
2016 and this is still the best for my Lasko humidifier!!

This is a preferred, 2" thick (vs original 1" thick) replacement for Lasko 1120 Humidifier.
This is the best I have found, so far, AND IS ONE PIECE, unlike the THF11 Lasko Humidifier Filter.
I replaced this twice this winter, and the second time was only to clean out the humidifier and pack it away for the Spring, otherwise this cascade filter is still in great shape.