Product review (5 stars): Fits perfectly into my Rheem RXIH-AB17A house humidifier.
I needed a replacement humidifier pad for a Rheem RXIH-AB17A house humidifier.  This was the first time I've had to replace it.  I was surprised the owners manual didn't list the specific part or type of pad to use.  Searching around on google, amazon and other places didn't provide an obvious answer.  After some digging I found two different sites that recommended this item so I gave it a try.

Fits perfectly into the Rheem.  It was a very easy replacement.  I plan to use this replacement pad going forward.