Product review (5 stars): Good as new!
I have an annual maintenance contract.  During the last inspection, the serviceman told me that my humidifier was leaking and would need to be replaced for about $500.  These are simple devices. I ordered the maintenance kit, replaced all the parts with the new ones in the kit, and now there is no leak and the humidifier is working perfectly.  $40 instead of $500!  The parts were exact replacements and the installation went very quickly.  Shipment was prompt, everything was well packed and complete.