Product review (5 stars): So glad that we bought this kit and will buy it ...
Exactly what was needed in order for the humidifier to work properly.  We had a contract with a furnace company all they said was that we needed a new one and these humidifiers never worked properly.  My husband got everything working perfectly within a half hour of unpacking the maintenance kit and all it took was reading and following the directions in order to have everything working properly.  So glad that we bought this kit and will buy it again when we need to do maintenance on the humidifier again.