Product review (5 stars): JUST FIX YOUR OLD ONE!!!
Wait Save your money!  I found I could extend the life of my old calcium-ed up water panel by using a Surfactant to help the water panel wick water better.  I was frustrated after needing to replace my last one only 2 weeks after it was installed.  Seems the calcium makes a trail down the panel and water refuses to dissipate to the rest of the panel after a while, requiring you to replace it or suffer dry air.  I sprayed a diluted mixture of Shaklee Basic-H (an organic non toxic surfactant that even has uses in organic gardening and soil conditioning) and now the panel stays wet without a problem.  Instead of buying another one, if it ever stops wicking I'm just going to spray more surfactant on it and I should be good for a long time!!!  Buy some Shaklee basic h instead of a new water panel!