Product review (5 stars): This kit installed easily and fixed the water leak in my older Aprilaire ...
This kit installed easily and fixed the water leak in my older Aprilaire humidifier.  The only problem was bending the hard plastic tubing.  There is also a trick in removing and replacing the in-line plastic water filter. There is an online video showing how to install a replacement kit.  Without viewing that video, I would probably not have installed the kit properly.  The video is a Youtube item - not one specifically recommended by this Aprilaire kit supplier.  So one recommendation is to provide a URL for installation videos with the kits.