Compatible for WF813 ReliOn Humidifier Wick Filter by CFS

The filters were sealed in plastic, not in a box. That's probably why they can be sold at a better price. And it's more sterile.this way.

Exact replacement for the humidifier. Didn't realize that there were actually 2 in every pack so ended up with 8 instead of 4. In other words, you get 4 filters with the 2 pack order. They are so reasonable it wasn't a problem since the filters are pretty flimsy and have to be thrown away after one or two uses.

These sag when wet. But they were the right size. Just not a fabulous product. I'll look else where for my next filters.

As Walmart no longer sells the original filter, a friend said to try Amazon.I was thrilled to find some filters. But, I should have listened to the other reviews that stated doubts. They are not up to standard. Not regular in size---some too long and needed trimming. They are not wide enough and start to lean and bent when they get wet. Humidifers do not work as well with them. Air can be heard flowing but water level does not go down which means to me that the water is not going into the room the way that it should.I ordered 12 and will use them since I have them. But, I do not expect them to last as long as the originals and I have doubts as to whether I will buy any more.I was very disappointed.

These are for my ReliOn cool mist humidifier from Walmart. The price here is basically 2 for the price of one compared to Walmart. They seem to be cut from a larger filter to fit this size. They do the job great, but are slightly smaller than the retail ones. They came just as in a plastic white mailing bag.

I purchased 6 of these filters under the impression that they were ReliOn brand filters made to replace the filters in my humidifier. They are not ReliOn brand - I don't know what they are. The filters came wrapped in a clear plastic bag, two to a package. There was no box other than the one it was shipped in. The shipping box was too small and caused 2 of the filters to be smashed and distorted. They will be difficult to use and probably not effective.These filters are also thinner and wider than ReliOn filters which causes you smash the sides of the filter so that it will fit down in the water tray. Another difference is the ReliOn brand filters have a silver mesh layer in the middle of the filter. These do not. I will not use this seller again. Buyer beware.

They do the job as best they can.... it is a small humidifier so you can't expect it to put out the moisture like a large wick filter/humidifier does. The filters hold up... and go the distance/time. :)

I really like these filters; there's no metal in them. We have a water softener and have always used potassium. Last winter we had a hard time finding the potassium and had to switch to salt. The salt ate up the metal inside the WF813 filters and we had a hard time with green corrosion in our humidifiers. I am very happy with these disposable filters and highly recommend them. It is suggested to replace them monthly and the quality looks like each filter could last a month.