Product review (1 stars): Don't buy. Get the original.
Get the wick  from Essick for a few more dollars!  I switched to this slightly cheaper wick and found our humidity went down. Then I switched back to the original item from Essick and got much better results: between x3 and x4 more water was put in the air in a 12 hour period between refilling the tank!  A dramatic difference. Relative humidity went up by 10%.