The magnetic backing was peeling off right out of the bag. It did stop the dripping sound from the upstairs air conditioner, but the foam is not firmly attached to the magnetic backing (see attached picture). Any water seems to make the problem worse. I had to bring it inside the house during the last storm to keep it from being blown away. It's currently sitting in the dining room while the upstairs ac is loudly dripping on mine. I wrote to the company, who offered to replace it (speedy response, if very brusque and impersonal). I appreciate their standing behind their product, and will see if the replacement is any better.

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