Product review (5 stars): Helpful maintenance kit
I have a 9 year old humidifier and it was time to do some maintenance.  I also replaced the water valve at the same time.  This kit was perfect, the only issue I had was the water tube is very stiff and pulled out of the connecter when it was running one day.  A mop to clean up the water and a piece of packing tape to hold down the tube fixed the issue.  Would recommend