The Aprilaire 4181 Scale Control Insert is an essential OEM replacement part designed for Aprilaire humidifier models 300, 350, and 360. This polypropylene U-shaped frame surrounds the water panel (Model 35) and collaborates with the water distribution tray (Model 4182, sold separately) to minimize mineral buildup and redirect excess water to the drain for reliable humidifier performance.
Specifications:
- Compatible Models: 300, 350, 360, 4785, 5936
- Materials: Polypropylene
- Actual Measurements: 11.625H x 2.875W x 13.3D (inches)
