Product review (2 stars): lasted ~22 months.
UPDATE: It died just shy of its 2-year anniversary. I don't consider that satisfactory. I noticed in the last several weeks that it would click on-off-on several times when the blower first started. This may be an indicator that it's on its last leg. This one failed in an "open" state, the previous one died "closed" so at least I had humidity. I wonder if I can cannibalize the two and come up with 1 working one?

Does anyone make a drop-in replacement for this that's reliable? Opening up the furnace to replace these is awkward and time consuming.

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I bought this to replace the 5-year old one that died 3-years ago. I don't see whats so difficult about these that they cant be reliable but at $20 each I guess its better than nothing. Will update review if this one lasts less than 1 OR more than 3 years...