Same as Aprilaire Part # 4218
These are the water distribution trays which distribute water evenly to all portions of the evaporative panel. They attach to the u-shaped scale control insert and incorporate specially formulated insert inside of them to distribute the water evenly to all portions of the tray. This even water distribution ensures maximum evaporation from your humidifier.
Bryant:
HUMBBSBP2312-A27
HUMBBSBP2212-A27
Carrier:
HUMCCSBP2312-A27
HUMCCSBP2212-A27
Totaline:
P110-SBP2212
P110-SBP2312
ICP:
HMICSB12A
Lennox:
WB2-12
WB2-12A
Trane:
THUMD200ABM00AA
American Standard:
AHUMD200ABM00AA