Product review (5 stars): That is far better than paying $250 for a new unit
Ordered the same part above that the furnace shop handed me from this seller. It arrived in two days. True they do not come with the little yellow insert that fits into the out going water line to the humidifier, that is because you can reuse your old one. Shut off the switch to the furnace, remove the wires, turn off the water coming into the humidifier and then remove the old lines (keep that outbound water line insert to reuse, otherwise too much water will pass into the humidifier). Next mount the new one on your furnace (pay attention to water flow arrow on the Solenoid, make sure it points in the same direction the water flows, connect the wires and water lines and your done. I used to do a lot of home repairs but lately its one or two per year, I was moving slow and cautious and this job took under a half hour to compete. That is far better than paying $250 for a new unit. Buy this and put it in you won't regret it.