The Skuttle A06-1722-019 is the correct replacement drum and media assembly for the following humidifier models:
The Skuttle Model 86UD Humidifier Drum/Media Assembly is a replacement drum and media assembly for the Skuttle Under Duct Humidifier Model 86UD. This Skuttle drum and filter assembly kit includes two plastic spoked wheel ends (8" diamater with 3" fingers), two retainer clips, stainless steel shaft (11 1/4" length, 31/6" diameter non-magnetic), and one foam filter (9" width). The Skuttle whole house humidifier filter collects mineral deposits within water and the other 86UD humidifier parts assist in the distribution of humidity through the home.
Skuttle Model 86UD Humidifier Drum/Media Assembly specifications: