OEM compatibility ensures precise fit for Aprilaire 500, 500A, and 500M humidifiers for reliable operation
Heat-resistant polypropylene construction withstands constant moisture and temperature fluctuations
Traps hard water scale and sediment to protect the humidifier base and drain line, extending system life
Optimized water flow design ensures even saturation of the water panel for consistent indoor air quality
Easy maintenance allows for seasonal replacement, simplifying HVAC servicing and preventing leaks
Summarized by Shop
Aprilaire 4640 Scale Control Insert
4640 Aprilaire Scale Control Insert
Fits Aprilaire 500
Breathe easy with the PureFilters Promise
Clean indoor air is essential to our well-being, and Canadians deserve a company that offers products to help them live a healthier life. PureFilters was founded with one mission - to help Canadia
Material
Polypropylene
Color
Black
Dimensions
11.143 H x 3.44 W x 10.44 D inches
Compatible Models
Aprilaire 500, 500A, 500M, 500 series
Pattern
Solid
Includes
Scale control insert only (water panel No. 10 sold separately)